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NVIDIA GeForce GTX 660 Review | 118 Data compared

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  • Avg. price: ~£200
  • VRAM: 2 GB
  • Memory bus width: 192 bit
  • Thermal Design Power (TDP): 140 W

NVIDIA GeForce GTX 660 review. Compare 118 technical specifications and user reviews to see how it ranks among graphics cards and if it is worth buying.

4.0

Overall score

What it is: An overall evaluation of the graphics card's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best graphics cards on the market.

Score components:

90.0%

3.5

Technical Score

10.0%

8.8

User score

Poor
3.5

Technical Score

What it is: An assessment of the graphics card's technical performance, covering key areas such as gaming and rendering performance, ray tracing, memory configuration, power efficiency, cooling, connectivity, features, and build quality.

When it matters: When you want to compare graphics cards based on technical performance and available features.

Score components:

44.0%

1.8

Performance

24.0%

2.7

Memory

12.0%

6.9

Power & Cooling

11.0%

5.1

Platform & Features

5.0%

8.2

Design

4.0%

6.5

Connectivity & Media

Poor
8.8

User score

What it is: A rating that combines user reviews and the total number of reviews received by the graphics card.

When it matters: When you want to understand how a graphics card performs in real use and how reliable it is in terms of performance, temperatures, noise, stability, and long-term ownership.

Score components:

70.0%

8.5

User reviews

30.0%

9.3

Popularity

User score:
United Kingdom
amazon
4.2
(187)
amazon
4.5
(37)
amazon
4.4
(27)
United States
Amazon_logo.png
4.3
(27)

(Reviews last updated: June 2026)

Excellent
  • 3.1
    Gaming

    Score components:

    45.0%

    1.0

    Floating-point performance

    25.0%

    1.0

    VRAM

    20.0%

    ?

    Ray tracing cores / units

    10.0%

    7.6

    PCI Express (PCIe) version

  • 4.1
    Video editing

    Score components:

    35.0%

    7.0

    AV1 encode

    30.0%

    1.0

    VRAM

    20.0%

    1.0

    Floating-point performance

    15.0%

    7.6

    PCI Express (PCIe) version

  • 2.4
    1080p

    Score components:

    55.0%

    1.0

    Floating-point performance

    25.0%

    1.0

    VRAM

    10.0%

    ?

    Ray tracing cores / units

    10.0%

    7.6

    PCI Express (PCIe) version

  • 2.4
    1440p

    Score components:

    50.0%

    1.0

    Floating-point performance

    30.0%

    1.0

    VRAM

    15.0%

    ?

    Ray tracing cores / units

    5.0%

    7.6

    PCI Express (PCIe) version

  • 2.7
    4K

    Score components:

    40.0%

    1.0

    Floating-point performance

    35.0%

    1.0

    VRAM

    20.0%

    ?

    Ray tracing cores / units

    5.0%

    7.6

    PCI Express (PCIe) version

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Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Nvidia GeForce GTX 660 is a mid-range graphics card based on the 28nm Kepler architecture and the GK106 graphics processor. Key specifications include 960 CUDA cores, a base clock of 980 MHz (boostable to 1033 MHz), and 2 GB of GDDR5 memory on a 192-bit interface, delivering a bandwidth of 144.2 GB/s. Main pros include solid 1080p performance for older titles and esports, support for technologies like GPU Boost and PhysX, and a relatively low TDP of 140 W requiring only a single 6-pin power connector. However, cons include its limited 2 GB VRAM and older architecture, which causes it to struggle significantly with modern AAA games, and a limited DirectX 12 feature level (11_0) that can lead to compatibility issues with newer titles.

Technical Specifications of NVIDIA GeForce GTX 660

Technical Score

What it is: An assessment of the graphics card's technical performance, covering key areas such as gaming and rendering performance, ray tracing, memory configuration, power efficiency, cooling, connectivity, features, and build quality.

When it matters: When you want to compare graphics cards based on technical performance and available features.

Score components:

44.0%

1.8

Performance

24.0%

2.7

Memory

12.0%

6.9

Power & Cooling

11.0%

5.1

Platform & Features

5.0%

8.2

Design

4.0%

6.5

Connectivity & Media

3.5
NVIDIA GeForce GTX 660 has a technical score of 3.5 points, which is lower than that of 93.6% of products in this category.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the graphics card.

When it matters: When you want to understand how a graphics card performs in real use and how reliable it is in terms of performance, temperatures, noise, stability, and long-term ownership.

Score components:

70.0%

8.5

User reviews

30.0%

9.3

Popularity

User score:
United Kingdom
amazon
4.2
(187)
amazon
4.5
(37)
amazon
4.4
(27)
United States
Amazon_logo.png
4.3
(27)

(Reviews last updated: June 2026)

8.8
NVIDIA GeForce GTX 660 has a user score of 8.78 points, which is higher than that of 74.5% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by the graphics card.
When it matters: When you prefer a graphics card that has already been chosen and reviewed by many other users.
9.3
NVIDIA GeForce GTX 660 has a popularity of 9.3 points, which is higher than 76% of products in this category.
Ratio quality/price

What it is: An indicator that combines the graphics card's overall rating with its cost.

When it matters: When you are looking for a graphics card that offers a strong balance of performance, features, and price.

Score components:

60.0%

4.0

Overall score

40.0%

9.5

Price

5.7
NVIDIA GeForce GTX 660 has a quality-to-price ratio of 5.7 points, which is lower than 87.7% of products in this category.
3DMark Time Spy benchmark score
What it is: Benchmark result from 3DMark Time Spy, a synthetic DirectX 12 test often used as a quick gaming-performance reference.
When it matters: When you need a fast rough performance sort before digging into game-specific reviews and frame-rate data.

Importance: LOW

?
3DMark Port Royal score
What it is: Benchmark result from 3DMark Port Royal, a synthetic test focused on ray tracing performance.
When it matters: When ray tracing matters in the games you actually play and you want one quick way to separate stronger and weaker RT cards.

Importance: LOW

N/A
PassMark (G3D) result
What it is: Overall GPU performance score in PassMark G3D benchmark
When it matters: When you need one broad score to sort cards into rough performance tiers.

Importance: LOW

4,104 points
NVIDIA GeForce GTX 660 scores 4104 points in PassMark G3D, which is lower than 77.5% of graphics cards and equal to 0.7% of graphics cards.
PassMark (DirectCompute) result
What it is: PassMark score for DirectCompute performance tests
When it matters: When compute workloads matter alongside gaming performance.

Importance: LOW

?
Floating-point performance
What it is: Theoretical floating-point compute performance of the GPU.
When it matters: When rendering, AI, or heavy compute work needs strong single-precision throughput.

Importance: LOW

1.981 TFLOPS
NVIDIA GeForce GTX 660 delivers 1.981 TFLOPS floating-point performance, which is lower than that of 96.6% of graphics cards.
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VRAM
What it is: Total video memory available on the graphics card
When it matters: When you play at high settings, use texture mods, or work with large creative projects.

Importance: HIGH

2 GB
NVIDIA GeForce GTX 660 has 2 GB of VRAM, which is less than 94.5% of graphics cards and equal to 3.9% of graphics cards.
Memory type
What it is: Type of graphics memory used (GDDR6, HBM2e, etc.)
When it matters: When memory technology is part of the buying decision because it affects bandwidth class, power use, and product positioning.

Importance: LOW

?
GDDR version
What it is: Generation of GDDR memory used by the graphics card.
When it matters: When you want to separate older memory generations from newer ones before comparing bandwidth, power behavior, and market tier.

Importance: LOW

GDDR5
NVIDIA GeForce GTX 660 uses GDDR5 memory, which is older than on 85% of graphics cards and equal to 13.2% of graphics cards.
Memory bus width
What it is: Width of the memory interface bus in bits
When it matters: When you care about steadier performance at higher resolutions, heavier texture settings, or ray-traced workloads that stress memory traffic.

Importance: HIGH

192 bit
NVIDIA GeForce GTX 660 uses a 192 bit memory bus, which is narrower than that of 50.5% of graphics cards and equal to that of 18.8% of graphics cards.
Maximum memory bandwidth
What it is: Maximum data transfer rate between GPU and its memory
When it matters: When 4K gaming, ray tracing, or creator work can choke a slower memory subsystem.

Importance: HIGH

144.2 GB/s
NVIDIA GeForce GTX 660 reaches 144.2 GB/s memory bandwidth, which is lower than that of 91.6% of graphics cards and equal to that of 0.2% of graphics cards.
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PCI Express (PCIe) version
What it is: Version of PCI Express interface supported
When it matters: When you are pairing the card with an older motherboard and want to avoid leaving bandwidth or future compatibility on the table.

Importance: LOW

3.0
NVIDIA GeForce GTX 660 supports PCIe 3.0, which is older than on 77.6% of graphics cards and equal to 20.3% of graphics cards.
PCIe lanes
What it is: Number of PCI Express lanes used for communication
When it matters: When limited lane width could bottleneck the card in some systems.

Importance: LOW

x16
NVIDIA GeForce GTX 660 uses x16 PCIe lanes, which is more than 31.5% of graphics cards and equal to 68.6% of graphics cards.
DirectX version
What it is: Highest supported DirectX API version
When it matters: When you play newer Windows games that depend on the latest graphics features.

Importance: LOW

?
Vulkan version
What it is: Highest supported Vulkan API version
When it matters: When modern games, emulators, or creative apps lean on Vulkan support.

Importance: LOW

1.2
NVIDIA GeForce GTX 660 supports Vulkan 1.2, which is older than on 96% of graphics cards and equal to 2.5% of graphics cards.
OpenGL version
What it is: Highest supported OpenGL API version
When it matters: When older games or pro apps still depend on OpenGL compatibility.

Importance: LOW

4.6
NVIDIA GeForce GTX 660 supports OpenGL 4.6, which is more advanced than on 4.8% of graphics cards and equal to 95.2% of graphics cards.
Show more
Max displays supported
What it is: Total number of external displays supported simultaneously
When it matters: When you run a multi-monitor desk for sim racing, trading, or editing.

Importance: LOW

4
NVIDIA GeForce GTX 660 supports up to 4 displays, which is more than 7.8% of graphics cards and equal to 89.2% of graphics cards.
Max digital resolution
What it is: Maximum supported digital display resolution
When it matters: When you plan to drive 4K or 8K panels at their native resolution.

Importance: LOW

?
DisplayPort outputs
What it is: Number of DisplayPort video outputs
When it matters: When your setup needs several high-refresh monitors without adapters.

Importance: LOW

1
NVIDIA GeForce GTX 660 offers 1 DisplayPort outputs, which is fewer than 89.5% of graphics cards and equal to 8.6% of graphics cards.
DisplayPort version
What it is: Version of DisplayPort standard supported
When it matters: When your monitor setup depends on newer DisplayPort features for higher refresh rates, higher resolution, or better cable flexibility.

Importance: LOW

1.2
NVIDIA GeForce GTX 660 supports DisplayPort 1.2, which is older than on 93.6% of graphics cards and equal to 4.8% of graphics cards.
DisplayPort link rates
What it is: Supported data link rates for DisplayPort connections
When it matters: When you are pushing high resolution and refresh rate over DisplayPort.

Importance: LOW

5.4 Gbps
NVIDIA GeForce GTX 660 supports DisplayPort link rates up to 5.4 Gbps, which is slower than on 90.9% of graphics cards and equal to 8% of graphics cards.
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Thermal Design Power (TDP)
What it is: Typical power consumption under full load (TDP)
When it matters: When you need a realistic idea of power draw before choosing a PSU or case.

Importance: MEDIUM

140 W
NVIDIA GeForce GTX 660 has a TDP of 140 W, which is lower than that of 78.5% of graphics cards and equal to that of 0.2% of graphics cards.
Power consumption while under peak load
What it is: Peak power draw of the graphics card under maximum load.
When it matters: When transient-heavy gaming loads could stress your power supply.

Importance: LOW

140 W
NVIDIA GeForce GTX 660 draws 140 W under peak load, which is lower than 78.3% of graphics cards and equal to 0.7% of graphics cards.
Recommended PSU wattage
What it is: Recommended wattage of the system power supply
When it matters: When you are checking whether your current power supply is enough.

Importance: LOW

450 W
NVIDIA GeForce GTX 660 recommends a 450 W PSU, which is lower than that of 85.8% of graphics cards and equal to that of 5.8% of graphics cards.
Board power limit
What it is: Maximum configurable power limit for the GPU board
When it matters: When you care about how far the card can be pushed through tuning or factory power settings.

Importance: LOW

140 W
NVIDIA GeForce GTX 660 has a board power limit of 140 W, which is lower than that of 79.6% of graphics cards and equal to that of 0.6% of graphics cards.
PCIe power spec
What it is: PCIe power delivery specification followed
When it matters: When you are checking whether the slot and external cables match the card's intended power-delivery standard.

Importance: LOW

140 W
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Size
What it is: Physical size of the GPU card
When it matters: When you need the card to fit a compact case without blocking nearby hardware.

Importance: LOW

?
Length
What it is: Physical length of the GPU card
When it matters: When front radiators or drive cages leave only limited GPU clearance.

Importance: LOW

241 mm
NVIDIA GeForce GTX 660 is 241 mm long, which is shorter than 75% of graphics cards and equal in length to 1.6% of graphics cards.
Height
What it is: Physical height of the GPU card
When it matters: When side panels, brackets, or tight case layouts reduce vertical clearance.

Importance: LOW

111 mm
NVIDIA GeForce GTX 660 is 111 mm tall, which is shorter than 89.6% of graphics cards and equal in height to 5.6% of graphics cards.
Slot width
What it is: Number of PCIe slots occupied by the card
When it matters: When you need room for another PCIe card or better airflow under the GPU.

Importance: LOW

2 slot/s
NVIDIA GeForce GTX 660 occupies 2 slot/s, which is slimmer than 49.2% of graphics cards and equal in width to 47.3% of graphics cards.
Weight
What it is: Total weight of the graphics card
When it matters: When sag, bracket support, or shipping stress matters in your build.

Importance: LOW

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NVIDIA GeForce GTX 660 vs the average graphics card

  • 12x larger L2 cache
    NVIDIA GeForce GTX 660 has more L2 cache than the average graphics card (384 MB vs 32 MB). The average graphics card has 32 MB L2 cache.
    What it is: Total size of the GPU’s L2 cache memory
    When it matters: When cache size can help the GPU feed data faster in demanding scenes.

    Importance: LOW

    NVIDIA GeForce GTX 660 has more L2 cache than the average graphics card (384 MB vs 32 MB). The average graphics card has 32 MB L2 cache.384 MB vs 32 MB
  • 30.8% lower PSU requirement
    NVIDIA GeForce GTX 660 has a lower PSU requirement than the average graphics card (450 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
    What it is: Recommended wattage of the system power supply
    When it matters: When you are checking whether your current power supply is enough.

    Importance: LOW

    NVIDIA GeForce GTX 660 has a lower PSU requirement than the average graphics card (450 W vs 650 W). The average graphics card has a PSU requirement of 650 W.450 W vs 650 W
  • 34.9% lower TDP
    NVIDIA GeForce GTX 660 has a lower TDP than the average graphics card (140 W vs 215 W). The average graphics card has a TDP of 215 W.
    What it is: Typical power consumption under full load (TDP)
    When it matters: When you need a realistic idea of power draw before choosing a PSU or case.

    Importance: MEDIUM

    NVIDIA GeForce GTX 660 has a lower TDP than the average graphics card (140 W vs 215 W). The average graphics card has a TDP of 215 W.140 W vs 215 W
  • 16 mm lower card height
    NVIDIA GeForce GTX 660 is shorter than the average graphics card (111 mm vs 127 mm). The average graphics card has a height of 127 mm.
    What it is: Physical height of the GPU card
    When it matters: When side panels, brackets, or tight case layouts reduce vertical clearance.

    Importance: LOW

    NVIDIA GeForce GTX 660 is shorter than the average graphics card (111 mm vs 127 mm). The average graphics card has a height of 127 mm.111 mm vs 127 mm
  • 44.37 mm shorter card length
    NVIDIA GeForce GTX 660 is shorter than the average graphics card (241 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.
    What it is: Physical length of the GPU card
    When it matters: When front radiators or drive cages leave only limited GPU clearance.

    Importance: LOW

    NVIDIA GeForce GTX 660 is shorter than the average graphics card (241 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.241 mm vs 285.37 mm
  • 2 more DVI outputs
    NVIDIA GeForce GTX 660 has more DVI outputs than the average graphics card (2 vs 0). The average graphics card has 0 DVI outputs.
    What it is: Number of DVI display outputs available
    When it matters: When you still use an older monitor that depends on DVI.

    Importance: LOW

    NVIDIA GeForce GTX 660 has more DVI outputs than the average graphics card (2 vs 0). The average graphics card has 0 DVI outputs.2 vs 0
  • 36.4% lower board power limit
    NVIDIA GeForce GTX 660 has a lower board power limit than the average graphics card (140 W vs 220 W). The average graphics card has a board power limit of 220 W.
    What it is: Maximum configurable power limit for the GPU board
    When it matters: When you care about how far the card can be pushed through tuning or factory power settings.

    Importance: LOW

    NVIDIA GeForce GTX 660 has a lower board power limit than the average graphics card (140 W vs 220 W). The average graphics card has a board power limit of 220 W.140 W vs 220 W
  • 10 °C lower idle temperature
    NVIDIA GeForce GTX 660 has a lower idle temperature than the average graphics card (28 °C vs 38 °C). The average graphics card has an idle temperature of 38 °C.
    What it is: GPU temperature measured while the graphics card is idle.
    When it matters: When the system stays on for long periods and you care whether the card runs cool and relaxed outside of gaming sessions.

    Importance: LOW

    NVIDIA GeForce GTX 660 has a lower idle temperature than the average graphics card (28 °C vs 38 °C). The average graphics card has an idle temperature of 38 °C.28 °C vs 38 °C
  • Better FP64 ratio
    NVIDIA GeForce GTX 660 has a better FP64 ratio than the average graphics card (1:24 vs 1:64).
  • 12x larger L2 cache
    NVIDIA GeForce GTX 660 has more L2 cache than the average graphics card (384 MB vs 32 MB). The average graphics card has 32 MB L2 cache.
  • Supports multi-GPU linking
    NVIDIA GeForce GTX 660 supports multi-GPU linking, the average graphics card does not.
  • 2 more DVI outputs
    NVIDIA GeForce GTX 660 has more DVI outputs than the average graphics card (2 vs 0). The average graphics card has 0 DVI outputs.
  • 30.8% lower PSU requirement
    NVIDIA GeForce GTX 660 has a lower PSU requirement than the average graphics card (450 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
  • 34.9% lower TDP
    NVIDIA GeForce GTX 660 has a lower TDP than the average graphics card (140 W vs 215 W). The average graphics card has a TDP of 215 W.
  • 36.4% lower board power limit
    NVIDIA GeForce GTX 660 has a lower board power limit than the average graphics card (140 W vs 220 W). The average graphics card has a board power limit of 220 W.
  • 10 °C lower idle temperature
    NVIDIA GeForce GTX 660 has a lower idle temperature than the average graphics card (28 °C vs 38 °C). The average graphics card has an idle temperature of 38 °C.
  • 16 mm lower card height
    NVIDIA GeForce GTX 660 is shorter than the average graphics card (111 mm vs 127 mm). The average graphics card has a height of 127 mm.
  • 44.37 mm shorter card length
    NVIDIA GeForce GTX 660 is shorter than the average graphics card (241 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.

Total
Overall
Performance
Memory
Platform & Features
Connectivity & Media
Power & Cooling
Design
  • 58.7% lower boost clock speed
    NVIDIA GeForce GTX 660 has a lower boost GPU clock than the average graphics card (1,032 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.
  • 49% lower base clock speed
    NVIDIA GeForce GTX 660 has a lower base GPU clock than the average graphics card (980 MHz vs 1,920 MHz). The average graphics card has a base GPU clock of 1,920 MHz.
  • 78.1% lower texture rate
    NVIDIA GeForce GTX 660 has a lower texture rate than the average graphics card (82.6 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.
  • 104 fewer TMUs
    NVIDIA GeForce GTX 660 has fewer TMUs than the average graphics card (80 vs 184). The average graphics card has 184 TMUs.
  • 40 fewer ROPs
    NVIDIA GeForce GTX 660 has fewer ROPs than the average graphics card (24 vs 64). The average graphics card has 64 ROPs.
  • 64% lower PassMark score
    NVIDIA GeForce GTX 660 has a lower PassMark score than the average graphics card (4,104 points vs 11,411 points). The average graphics card has a PassMark score of 11,411 points.
  • 91.4% lower compute throughput
    NVIDIA GeForce GTX 660 has a lower compute throughput than the average graphics card (2 TFLOPS vs 23.105 TFLOPS). The average graphics card has compute throughput of 23.105 TFLOPS.
  • 3,392 fewer FP32 units
    NVIDIA GeForce GTX 660 has fewer FP32 units than the average graphics card (960 vs 4,352). The average graphics card has 4,352 FP32 units.
  • 10 GB less VRAM
    NVIDIA GeForce GTX 660 has fewer VRAM than the average graphics card (2 GB vs 12 GB). The average graphics card has 12 GB VRAM.
  • 64 bit narrower memory bus
    NVIDIA GeForce GTX 660 has a narrower memory bus than the average graphics card (192 bit vs 256 bit). The average graphics card has a memory bus width of 256 bit.
  • 67.8% lower memory bandwidth
    NVIDIA GeForce GTX 660 has a lower memory bandwidth than the average graphics card (144.2 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
  • 68.4% slower memory speed
    NVIDIA GeForce GTX 660 has a lower effective memory speed than the average graphics card (6,008 MHz vs 19,000 MHz). The average graphics card reaches an effective memory speed of 19,000 MHz.
  • 87.5% smaller L1 cache
    NVIDIA GeForce GTX 660 has fewer L1 cache than the average graphics card (16 vs 128). The average graphics card has 128 L1 cache.
  • 14.2% slower VRAM clock
    NVIDIA GeForce GTX 660 has a lower VRAM clock than the average graphics card (1,502 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.
  • 5.6x larger process node
    NVIDIA GeForce GTX 660 has a higher process node than the average graphics card (28 nm vs 5 nm). The average graphics card uses a process node of 5 nm.
  • No DLSS support
    NVIDIA GeForce GTX 660 does not support DLSS, the average graphics card does.
  • 11 older
    NVIDIA GeForce GTX 660 was released earlier than the average graphics card (2,012 vs 2,023).
  • Older PCIe version
    NVIDIA GeForce GTX 660 supports an older PCIe version than the average graphics card (3 vs 4.0).
  • No AI upscalers
    NVIDIA GeForce GTX 660 does not support AI upscalers, the average graphics card does.
  • No XeSS support
    NVIDIA GeForce GTX 660 does not support XeSS, the average graphics card does.
  • No mesh shaders
    NVIDIA GeForce GTX 660 does not support mesh shaders, the average graphics card does.
  • Older Vulkan version
    NVIDIA GeForce GTX 660 supports an older Vulkan version than the average graphics card (1.2 vs 1.4).
  • No DirectStorage support
    NVIDIA GeForce GTX 660 does not support DirectStorage, the average graphics card does.
  • No sampler feedback
    NVIDIA GeForce GTX 660 does not support sampler feedback, the average graphics card does.
  • Older shader model
    NVIDIA GeForce GTX 660 supports an older shader model than the average graphics card (6.5 vs 6.8).
  • 88.4% fewer transistors
    NVIDIA GeForce GTX 660 has fewer transistors than the average graphics card (2,540 million vs 21,900 million). The average graphics card has 21,900 million transistors.
  • 2 fewer DisplayPort outputs
    NVIDIA GeForce GTX 660 has fewer DisplayPort outputs than the average graphics card (1 vs 3). The average graphics card has 3 DisplayPort outputs.
  • No AV1 encoding
    NVIDIA GeForce GTX 660 does not support AV1 encoding, the average graphics card does.
  • No AV1 decoding
    NVIDIA GeForce GTX 660 does not support AV1 decoding, the average graphics card does.
  • No DSC support
    NVIDIA GeForce GTX 660 does not support DSC, the average graphics card does.
  • Older HDMI version
    NVIDIA GeForce GTX 660 supports an older HDMI version than the average graphics card (1.4a vs 2.1).
  • Older DisplayPort version
    NVIDIA GeForce GTX 660 supports an older DisplayPort version than the average graphics card (1.2 vs 1.4a).
  • Not VR ready
    NVIDIA GeForce GTX 660 is not VR ready, while the average graphics card is.
  • 2 fewer fans
    NVIDIA GeForce GTX 660 has fewer fans than the average graphics card (1 vs 3).
  • 4 °C lower thermal ceiling
    NVIDIA GeForce GTX 660 has a lower thermal ceiling than the average graphics card (97 °C vs 93 °C). The average graphics card has a thermal ceiling of 93 °C.
  • No backplate
    NVIDIA GeForce GTX 660 does not include a backplate, the average graphics card does.
  • 58.7% lower boost clock speed
    NVIDIA GeForce GTX 660 has a lower boost GPU clock than the average graphics card (1,032 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.
    What it is: Maximum boost frequency the GPU can reach under load
    When it matters: When you want a rough idea of peak advertised frequency, while knowing real sustained clocks still depend on cooling and power limits.

    Importance: HIGH

    NVIDIA GeForce GTX 660 has a lower boost GPU clock than the average graphics card (1,032 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.1032 MHz vs 2500 MHz
  • 5.6x larger process node
    NVIDIA GeForce GTX 660 has a higher process node than the average graphics card (28 nm vs 5 nm). The average graphics card uses a process node of 5 nm.
    What it is: Size of the manufacturing process in nanometers
    When it matters: When process node differences may affect power, heat, and overall efficiency.

    Importance: MEDIUM

    NVIDIA GeForce GTX 660 has a higher process node than the average graphics card (28 nm vs 5 nm). The average graphics card uses a process node of 5 nm.28 nm vs 5 nm
  • 2 fewer fans
    NVIDIA GeForce GTX 660 has fewer fans than the average graphics card (1 vs 3).
    What it is: Total number of cooling fans
    When it matters: When you compare cooler designs and want one more clue about thermal potential.

    Importance: MEDIUM

    NVIDIA GeForce GTX 660 has fewer fans than the average graphics card (1 vs 3).1 vs 3
  • 10 GB less VRAM
    NVIDIA GeForce GTX 660 has fewer VRAM than the average graphics card (2 GB vs 12 GB). The average graphics card has 12 GB VRAM.
    What it is: Total video memory available on the graphics card
    When it matters: When you play at high settings, use texture mods, or work with large creative projects.

    Importance: HIGH

    NVIDIA GeForce GTX 660 has fewer VRAM than the average graphics card (2 GB vs 12 GB). The average graphics card has 12 GB VRAM.2 GB vs 12 GB
  • 49% lower base clock speed
    NVIDIA GeForce GTX 660 has a lower base GPU clock than the average graphics card (980 MHz vs 1,920 MHz). The average graphics card has a base GPU clock of 1,920 MHz.
    What it is: Base operating frequency of the GPU core under standard conditions
    When it matters: When you want to understand the card's guaranteed starting frequency instead of looking only at optimistic boost figures.

    Importance: HIGH

    NVIDIA GeForce GTX 660 has a lower base GPU clock than the average graphics card (980 MHz vs 1,920 MHz). The average graphics card has a base GPU clock of 1,920 MHz.980 MHz vs 1920 MHz
  • 64 bit narrower memory bus
    NVIDIA GeForce GTX 660 has a narrower memory bus than the average graphics card (192 bit vs 256 bit). The average graphics card has a memory bus width of 256 bit.
    What it is: Width of the memory interface bus in bits
    When it matters: When you care about steadier performance at higher resolutions, heavier texture settings, or ray-traced workloads that stress memory traffic.

    Importance: HIGH

    NVIDIA GeForce GTX 660 has a narrower memory bus than the average graphics card (192 bit vs 256 bit). The average graphics card has a memory bus width of 256 bit.192 bit vs 256 bit
  • 78.1% lower texture rate
    NVIDIA GeForce GTX 660 has a lower texture rate than the average graphics card (82.6 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.
    What it is: Number of textured pixels the GPU can process per second
    When it matters: When fast texture handling matters in high-refresh gaming workloads.

    Importance: HIGH

    NVIDIA GeForce GTX 660 has a lower texture rate than the average graphics card (82.6 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.82.56 GTexel/s vs 376.8 GTexel/s
  • 104 fewer TMUs
    NVIDIA GeForce GTX 660 has fewer TMUs than the average graphics card (80 vs 184). The average graphics card has 184 TMUs.
    What it is: Total count of texture mapping units on the GPU
    When it matters: When texture-heavy gaming performance matters and you want extra hardware context behind texture-rate claims.

    Importance: HIGH

    NVIDIA GeForce GTX 660 has fewer TMUs than the average graphics card (80 vs 184). The average graphics card has 184 TMUs.80 vs 184
Total
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Performance
Memory
Platform & Features
Connectivity & Media
Power & Cooling
Design

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Third-party reviews

United Kingdom
amazon
4.2
187 Reviews
amazon
4.5
37 Reviews
amazon
4.4
27 Reviews
United States
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4.3
27 Reviews

(Reviews last updated: June 2026)

What customers like about NVIDIA GeForce GTX 660?

  • Capable of running older games (e.g., GTA V, Skyrim) at 1080p with high settings.
  • Remains a solid budget choice for esports titles like CS:GO or League of Legends.
  • Energy-efficient design typically requiring only a single 6-pin power connector.
  • Available at very low prices on the used market, often outperforming basic entry-level cards like the GT 1030.
  • Many third-party models, such as those from ASUS and Gigabyte, are noted for being quiet and running cool.

What customers dislike about NVIDIA GeForce GTX 660?

  • Struggles significantly with modern AAA titles (e.g., Cyberpunk 2077), often failing to maintain playable frame rates even at lowest settings.
  • The 2GB VRAM limit causes frequent 'hitching' or crashes in modern games or those with high-res texture mods.
  • Limited to legacy driver support since 2021, leading to potential stability issues or glitches in newer software.
  • Poor performance in modern APIs like DirectX 12 and Vulkan compared to newer budget alternatives.
  • Older reference models can run significantly hotter (85°C+) than modern counterparts, potentially reducing hardware lifespan.

Expert reviews

T
techpowerup.com
23/09/2013
MSI GTX 660 GAMING 2 GBGo to product viewer dialogue for this item. Review | TechPowerUp TechPowerUp

The TechPowerUp review of the MSI GTX 660 GAMING 2 GB highlights the card as a factory-overclocked, 28 nm GK106-based GPU offering robust 1080p performance with excellent cooling, reaching only 62°C under load. It features a sleek design, low noise levels at idle, and flexible display outputs, positioning it as an aesthetic match to higher-end 700-series cards. However, the card...Read more

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guru3d.com
22/10/2012
MSI GeForce GTX 660 HAWK review - Guru 3d

The Guru3D review of the MSI GeForce GTX 660 HAWK highlights it as an exceptional, premium-tier entry in the mid-range graphics card market, featuring a 28nm Kepler GK106 architecture with a 960 CUDA core count. The card is praised for its high factory overclock (1084 MHz base), robust 8-phase power design with Military Class III components, and the effective, quiet Twin Frozr IV...Read more

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guru3d.com
21/09/2012
Gigabyte GeForce GTX 660 Windforce OCGo to product viewer dialogue for this item. review | Guru3D

The Guru3D review details the GeForce GTX 660, powered by the 28nm Kepler architecture and the GK106 chip featuring 960 CUDA cores across five SM clusters. This design, designed to segment the market, provides efficient 1080p performance while deliberately creating a gap in CUDA core count compared to the 660 Ti and 670. Key advantages include high-density processing power and...Read more

F
futurelooks.com
13/09/2012
The NVIDIA GTX 660 Launch Review Featuring EVGA's Superclocked Edition

The EVGA GeForce GTX 660 Superclocked Edition serves as NVIDIA’s entry into the crucial $199 budget-friendly "sweet spot," providing a highly accessible upgrade path for mainstream gamers. Built on the Kepler architecture, this non-reference card targets fluid 1080p performance. It features factory-overclocked core and boost clocks alongside a standard single-fan cooling design that...Read more

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techpowerup.com
13/09/2012
ASUS GeForce GTX 660 Direct Cu IIGo to product viewer dialogue for this item. 2 GB Review

The ASUS GeForce GTX 660 DirectCU II is highlighted as an exceptionally quiet and cool-running, factory-overclocked card that matches the AMD HD 7870 in performance. Key advantages include the efficient DirectCU II cooler, superior noise levels, and NVIDIA features like PhysX, though the $259 launch price offers a similar value proposition to competitors, and gaming power efficiency...Read more

T
techpowerup.com
13/09/2012
MSI GeForce GTX 660 Twin Frozr 2 GBGo to product viewer dialogue for this item. Review - Value & Conclusion | TechPowerUp

The TechPowerUp review of the MSI GeForce GTX 660 Twin Frozr III highlights it as an exceptionally quiet card with a premium metal shroud, factory overclock, and excellent multi-monitor energy efficiency. It offers strong performance per clock with low operating noise and requires only a single 6-pin power connector. YouTube · Conversely, the card exhibits limited manual...Read more

H
hothardware.com
13/09/2012
NVIDIA GeForce GTX 660 Round-Up: MSI, ZOTAC, GB | HotHardware

The NVIDIA GeForce GTX 660, based on the 28nm GK106 Kepler architecture, is a scaled-down, budget-friendly alternative to its higher-end GK104 counterparts like the GTX 660 Ti. The reference card features 960 CUDA cores, 80 texture units, 24 ROPs, and 2GB of GDDR5 memory running on a 192-bit interface, delivering 144.2 GB/s of memory bandwidth. Architecturally, it utilizes a short...Read more

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pcmag.com
13/09/2012
Nvidia GeForce GTX 660 Review | PCMag

The Nvidia GeForce GTX 660, reviewed at a $229 list price, serves as a potent, Kepler-based mid-range graphics card designed to run modern 3D titles at high resolutions like 1,920 by 1,200. Key advantages highlighted include its excellent performance-to-price ratio and its ability to provide smooth frame rates in mainstream gaming, making it a solid upgrade choice. However, the...Read more

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techspot.com
13/09/2012
Nvidia GeForce GTX 660Go to product viewer dialogue for this item. Review - TechSpot

The TechSpot review of the $230 MSRP Nvidia GeForce GTX 660 highlights it as a competitive 28nm Kepler-based card, offering strong 1080p performance (e.g., 51 fps in Battlefield 3) with high efficiency, running at just 61°C in tests. While delivering 14% lower performance than the GTX 660 Ti at a roughly 23% lower price, it features impressive power efficiency and solid performance...Read more

O
overclockers.com
19/11/2012
ASUS GTX 660 DirectCU II Graphics Card Review

The ASUS GTX 660 DirectCU II is a highly capable 28nm Kepler-based graphics card, featuring a superior custom cooler that delivers 20% lower temperatures and 9 dB less noise, alongside robust Super Alloy Power components for stable overclocks. The card offers impressive 1080p gaming performance with a factory overclock to 1085 MHz boost, delivering an excellent balance of power and...Read more

T
techpowerup.com
21/10/2012
MSI GeForce GTX 660 HAWK 2 GB Review - TechPowerUp

The TechPowerUp review of the MSI GeForce GTX 660 HAWK 2 GB highlights a highly customized, premium card featuring an 11% factory core overclock, delivering an 8% gaming performance increase over reference models. Key advantages include a 10-phase VRM, dual BIOS, the GPU Reactor module for voltage stability, and the efficient, quiet Twin Frozr IV cooling system. Despite these...Read more

D
digitalfoundry.net
01/10/2012
NVIDIA GeForce GTX 660 review - Digital Foundry

The Digital Foundry review identifies the NVIDIA GeForce GTX 660 as a robust, budget-friendly GPU aimed at delivering smooth 1080p gaming performance. Built on 28nm Kepler architecture, its key strengths include a compact 241mm length, efficient 140W TDP requiring only a single 6-pin connector, and versatile four-monitor support. Conversely, the card features a reduced 960 CUDA core...Read more

T
techpowerup.com
13/09/2012
ASUS GeForce GTX 660 Direct Cu II 2 GB Review - TechPowerUp

The TechPowerUp review for the ASUS GeForce GTX 660 DirectCU II highlights the card's exceptional DirectCU II cooler, which offers remarkably low noise levels and low temperatures. As a pre-overclocked (TOP) variant, it delivers strong 1080p performance while requiring only a single 6-pin power connector, maintaining high efficiency in multi-monitor setups. Key drawbacks noted in...Read more

T
techpowerup.com
13/09/2012
ZOTAC GeForce GTX 660 2 GB Review - TechPowerUp

The TechPowerUp review highlights the Zotac GeForce GTX 660 2 GB as a compact, quiet, and capable card featuring a minor factory overclock and an efficient dual-fan cooler suitable for small builds. It boasts excellent non-gaming power efficiency, strong multi-display support, and a competitive price point. However, the card faces stiff competition from the faster AMD Radeon HD...Read more

C
computerwoche.de
12/11/2012
Nvidias Gegenangriff: Zotac Geforce GTX 660Go to product viewer dialog for this item. im Test Computerwoche

The Zotac Geforce GTX 660 is a strong mid-range contender that successfully utilizes the GK106 Kepler-based chip to deliver high-tier gaming performance at a budget-friendly price point of 229 Euro. In benchmarks, the card excelled at Full-HD (1080p) gaming, achieving a smooth 40 FPS in Battlefield 3 on Ultra settings and matching the performance of higher-end competitors like the...Read more

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pcwelt.de
13/12/2012
EVGA Geforce GTX 660 Superclocked im Test PC-WELT +1

The EVGA GeForce GTX 660 Superclocked is a mid-range graphics card that offers strong gaming and multimedia performance by pushing the hardware beyond reference specifications. In testing, the card's "Superclocked" nature—featuring a base clock of 1046 MHz and a boost clock of 1111 MHz—allowed it to handle modern titles like Battlefield 3 and Dirt 3 at Full-HD (1080p) resolution...Read more

(Translated)Show original
H
hardwareluxx.de
13/09/2012
Test: NVIDIA GeForce GTX 660 Hardwareluxx +1

Based on the Hardwareluxx review, the NVIDIA GeForce GTX 660 marks NVIDIA's entry into the budget-friendly "sweet spot" market under €200, utilizing the new 28nm "Kepler" GK106 architecture. This specific evaluation highlights custom, factory-overclocked variants from board partners, namely the ASUS GeForce GTX 660 DirectCU II TOP and the Zotac GeForce GTX 660 AMP! Edition. The...Read more

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gamestar.de
13/09/2012
Nvidia Geforce GTX 660 - Kepler-Geforce für knapp über 200 Euro GameStar

The Nvidia GeForce GTX 660 is a solid mid-range graphics card that introduces the 28 nm Kepler architecture to budget-conscious gamers. Based on the slimmed-down GK106 chip, it features 960 shader units and a base clock speed of 980 MHz, which automatically boosts up to 1,033 MHz under heavy loads. Equipped with 2.0 GB of GDDR5 VRAM running across a 192-bit memory interface, this...Read more

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C
computerbase.de
13/09/2012
Nvidia GeForce GTX 660 im Test: Kepler in günstig dank GK106 ComputerBase +1

The Nvidia GeForce GTX 660 marks the debut of the 28-nm GK106 GPU architecture, offering a budget-friendly option under the €250 price bracket to bridge the gap below the pricier GTX 660 Ti. Boasting 960 shader units, 80 TMUs, 24 ROPs, and a 192-bit memory interface across 2 GB of GDDR5 VRAM, the graphics card targets reliable mid-range performance with an average boost clock of...Read more

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pcgameshardware.de
13/09/2012
Geforce GTX 660 im Test: Testsystem - PCGH

This review evaluates Nvidia’s GeForce GTX 660, marking the debut of the mass-market Kepler architecture via the GK106 silicon priced slightly above €200. Tested on a high-end Intel Core i7-3770K Ivy Bridge system overclocked to 4.5 GHz with 8 GiByte of DDR3-1866 RAM, the graphics card was benchmarked across 11 games (including Battlefield 3, Crysis 2, and Metro 2033) at 1080p and...Read more

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noticias3d.com
13/09/2012
Asus GeForce GTX 660 DC2T y detalles de la GTX 650

The hardware review on Noticias3D analyzes the launch of NVIDIA's mid-range Kepler-based graphics cards, focusing specifically on the paper details of the entry-level GeForce GTX 650 and a full hands-on performance test of the factory-overclocked Asus GTX 660 DirectCU II TOP (GTX660-DC2T-2GD5). The article highlights a bumpy launch cycle due to multiple NDA delays by NVIDIA, which...Read more

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geeknetic.es
13/09/2012
Zotac Nvidia Geforce GTX 660 [Análisis Completo en Español] - Geeknetic

Review Overview The Zotac Nvidia GeForce GTX 660 is a compact, mid-range graphics card designed as a budget-friendly option for PC gamers playing modern and "Free to Play" titles at Full HD (1920x1080) resolution. Built on the Kepler architecture, this energy-efficient card operates at a 1GHz base frequency (980MHz nominal / 1033MHz turbo boost) and features 2GB of GDDR5 memory...Read more

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noticias3d.com
13/09/2012
Gigabyte GeForce GTX 660 OC - Noticias3D.com

The Gigabyte GeForce GTX 660 OC (GV-N660OC-2GD) is a mid-to-high-end graphics card built on NVIDIA's 28 nm GK106 architecture, featuring 960 Stream Processors and 2 GB of GDDR5 memory across a 192-bit bus. According to this review from Noticias3D, the card comes with a notable factory overclock, pushing the core clock to 1,033 MHz (with a 1,098 MHz Boost Clock) and memory bandwidth...Read more

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hwupgrade.it
13/09/2012
NVIDIA GeForce GTX 660: test di consumo e conclusioni

The page 15 review from Hardware Upgrade evaluates the custom, factory-overclocked Asus and Gigabyte variants of the NVIDIA GeForce GTX 660, which is the first graphics card to feature the simplified GK106 Kepler architecture. The review focuses strictly on the power consumption, noise levels, and thermal performance of these mid-range offerings. Tested under synthetic loads like...Read more

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hwupgrade.it
13/09/2012
NVIDIA GeForce GTX 660: la prima con GPU GK106 - Hardware Upgrade

The NVIDIA GeForce GTX 660, debuting in September 2012, introduces the Kepler-based GK106 GPU as a more affordable, mainstream alternative to the GK104 chip used in higher-end models. Featuring 960 CUDA cores, a base clock of 980 MHz, a boost clock of 1,033 MHz, and 2 GB of GDDR5 memory on a 192-bit bus, the card successfully targets the highly competitive sweet spot for PC gamers....Read more

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