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GIGABYTE GeForce GTX 1660 OC Review | 118 Data compared

Avg. price in UK: ~£360
Avg. price in US: ~$220
VRAM: 6 GB
Memory bus width: 192 bit
Thermal Design Power (TDP): 120 W

GIGABYTE GeForce GTX 1660 OC review. Compare 118 technical specifications and user reviews to see how this product ranks in the Graphics cards category and whether it is worth buying.

5.5

Good

5.1

Good

9.6

Exceptional

2.5
Gaming
Score components:
45.0%
1.5
Floating-point performance
25.0%
3.6
VRAM
20.0%
1.0
Ray tracing cores / units
10.0%
7.6
PCI Express (PCIe) version
5.0
Video editing
Score components:
35.0%
7.0
AV1 encode
30.0%
3.6
VRAM
20.0%
1.5
Floating-point performance
15.0%
7.6
PCI Express (PCIe) version
2.6
1080p
Score components:
55.0%
1.5
Floating-point performance
25.0%
3.6
VRAM
10.0%
1.0
Ray tracing cores / units
10.0%
7.6
PCI Express (PCIe) version
2.4
1440p
Score components:
50.0%
1.5
Floating-point performance
30.0%
3.6
VRAM
15.0%
1.0
Ray tracing cores / units
5.0%
7.6
PCI Express (PCIe) version
2.4
4K
Score components:
40.0%
1.5
Floating-point performance
35.0%
3.6
VRAM
20.0%
1.0
Ray tracing cores / units
5.0%
7.6
PCI Express (PCIe) version

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Verdict

The Gigabyte GeForce GTX 1660 OC is a mid-range graphics card based on the 12nm Turing architecture, featuring 1,408 CUDA cores and 6GB of GDDR5 memory on a 192-bit bus. This factory-overclocked model delivers a boost clock of 1,830 MHz and utilizes the Windforce 2X cooling system with two 90mm alternate-spinning fans and composite copper heat pipes for efficient heat dissipation. Its main advantages include strong 1080p gaming performance that rivals the GTX 1070, a compact 224mm length suitable for smaller builds, and excellent power efficiency with a 120W TDP. However, notable drawbacks include the lack of dedicated Ray Tracing and Tensor cores (no DLSS support), the use of older GDDR5 memory instead of faster GDDR6, and a plastic backplate that offers structural support but provides no thermal benefits.

Technical Specifications of graphics card GIGABYTE GeForce GTX 1660 OC

Overall score

5.5

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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.

Performance

3.4

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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

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

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

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Memory

3.5

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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

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

GDDR5

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

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

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

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Platform & Features

7.9

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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

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

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

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

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Connectivity & Media

8.7

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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

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

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

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

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Power & Cooling

8.9

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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

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

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

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

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

120 W

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Design

9.6

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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

224 x 121 x 40 mm

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

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

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

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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GIGABYTE GeForce GTX 1660 OC vs the average graphics card

Why is GIGABYTE GeForce GTX 1660 OC better than the average graphics card?

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44.2% lower TDP
GIGABYTE GeForce GTX 1660 OC has a lower TDP than the average graphics card (120 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
GIGABYTE GeForce GTX 1660 OC has a lower TDP than the average graphics card (120 W vs 215 W). The average graphics card has a TDP of 215 W.120 W vs 215 W
30.8% lower PSU requirement
GIGABYTE GeForce GTX 1660 OC 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
GIGABYTE GeForce GTX 1660 OC 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
61 mm shorter card length
GIGABYTE GeForce GTX 1660 OC is shorter than the average graphics card (224 mm vs 285 mm). The average graphics card has a length of 285 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
GIGABYTE GeForce GTX 1660 OC is shorter than the average graphics card (224 mm vs 285 mm). The average graphics card has a length of 285 mm.224 mm vs 285 mm
14.3% faster VRAM clock
GIGABYTE GeForce GTX 1660 OC has a higher VRAM clock than the average graphics card (2001 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.
What it is: Speed at which the GPU memory operates
When it matters: When you want more context on how quickly the card's VRAM can move data.
Importance: LOW
GIGABYTE GeForce GTX 1660 OC has a higher VRAM clock than the average graphics card (2001 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.2001 MHz vs 1750 MHz
0.5 slot/s slimmer design
GIGABYTE GeForce GTX 1660 OC occupies fewer slots than the average graphics card (2 slot/s vs 2.5 slot/s). The average graphics card occupies 2.5 slot/s.
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
GIGABYTE GeForce GTX 1660 OC occupies fewer slots than the average graphics card (2 slot/s vs 2.5 slot/s). The average graphics card occupies 2.5 slot/s.2 slot/s vs 2.5 slot/s
19.8% higher user score
GIGABYTE GeForce GTX 1660 OC has a higher user score than the average graphics card (9.58 vs 8.000).
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.
GIGABYTE GeForce GTX 1660 OC has a higher user score than the average graphics card (9.58 vs 8.000).9.58 vs 8
2.37x more popular
GIGABYTE GeForce GTX 1660 OC is more popular than the average graphics card (10.00 vs 4.215).
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.
GIGABYTE GeForce GTX 1660 OC is more popular than the average graphics card (10.00 vs 4.215).10 vs 4.22
41.2% lighter card weight
GIGABYTE GeForce GTX 1660 OC is lighter than the average graphics card (600 g vs 1,021 g). The average graphics card weighs 1,021 g.
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
GIGABYTE GeForce GTX 1660 OC is lighter than the average graphics card (600 g vs 1,021 g). The average graphics card weighs 1,021 g.600 g vs 1021 g
14.3% faster VRAM clock
GIGABYTE GeForce GTX 1660 OC has a higher VRAM clock than the average graphics card (2001 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.
44.2% lower TDP
GIGABYTE GeForce GTX 1660 OC has a lower TDP than the average graphics card (120 W vs 215 W). The average graphics card has a TDP of 215 W.
30.8% lower PSU requirement
GIGABYTE GeForce GTX 1660 OC 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.
61 mm shorter card length
GIGABYTE GeForce GTX 1660 OC is shorter than the average graphics card (224 mm vs 285 mm). The average graphics card has a length of 285 mm.
0.5 slot/s slimmer design
GIGABYTE GeForce GTX 1660 OC occupies fewer slots than the average graphics card (2 slot/s vs 2.5 slot/s). The average graphics card occupies 2.5 slot/s.
41.2% lighter card weight
GIGABYTE GeForce GTX 1660 OC is lighter than the average graphics card (600 g vs 1,021 g). The average graphics card weighs 1,021 g.

Power & Cooling

Why is GIGABYTE GeForce GTX 1660 OC worse than the average graphics card?

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40 fewer ray tracing cores
GIGABYTE GeForce GTX 1660 OC has fewer ray tracing cores than the average graphics card (0 vs 40). The average graphics card has 40 ray tracing cores.
26.9% lower boost clock speed
GIGABYTE GeForce GTX 1660 OC has a lower boost GPU clock than the average graphics card (1,830 MHz vs 2,505 MHz). The average graphics card has a boost GPU clock of 2,505 MHz.
18 fewer compute units
GIGABYTE GeForce GTX 1660 OC has fewer compute units than the average graphics card (22 vs 40). The average graphics card has 40 compute units.
96 fewer TMUs
GIGABYTE GeForce GTX 1660 OC has fewer TMUs than the average graphics card (88 vs 184). The average graphics card has 184 TMUs.
57.8% lower texture rate
GIGABYTE GeForce GTX 1660 OC has a lower texture rate than the average graphics card (161 GTexel/s vs 381.2 GTexel/s). The average graphics card has a texture rate of 381.2 GTexel/s.
144 fewer AI cores
GIGABYTE GeForce GTX 1660 OC has fewer AI cores than the average graphics card (0 vs 144). The average graphics card has 144 AI cores.
46.2% lower pixel rate
GIGABYTE GeForce GTX 1660 OC has a lower pixel rate than the average graphics card (87.8 GPixel/s vs 163.2 GPixel/s). The average graphics card has a pixel rate of 163.2 GPixel/s.
77.7% lower FP32 performance
GIGABYTE GeForce GTX 1660 OC has a lower FP32 performance than the average graphics card (5 TFLOPS vs 22.57 TFLOPS). The average graphics card has FP32 performance of 22.57 TFLOPS.
20.3% lower base clock speed
GIGABYTE GeForce GTX 1660 OC has a lower base GPU clock than the average graphics card (1,530 MHz vs 1920 MHz). The average graphics card has a base GPU clock of 1920 MHz.
16 fewer ROPs
GIGABYTE GeForce GTX 1660 OC has fewer ROPs than the average graphics card (48 vs 64). The average graphics card has 64 ROPs.
48.2% lower PassMark score
GIGABYTE GeForce GTX 1660 OC has a lower PassMark score than the average graphics card (11,737 points vs 22,653 points). The average graphics card has a PassMark score of 22,653 points.
65.9% lower gaming score
GIGABYTE GeForce GTX 1660 OC has a lower gaming score than the average graphics card (5,000 points vs 14,678.5 points). The average graphics card has a gaming score of 14,678.5 points.
84.7% lower ray tracing score
GIGABYTE GeForce GTX 1660 OC has a lower ray tracing score than the average graphics card (1,401 points vs 9,166 points). The average graphics card has a ray tracing score of 9,166 points.
77.6% lower compute throughput
GIGABYTE GeForce GTX 1660 OC has a lower compute throughput than the average graphics card (5.2 TFLOPS vs 22.98 TFLOPS). The average graphics card has compute throughput of 22.98 TFLOPS.
59% lower compute score
GIGABYTE GeForce GTX 1660 OC has a lower compute score than the average graphics card (4,950 points vs 12,074 points). The average graphics card has a compute score of 12,074 points.
64.8% lower FP16 performance
GIGABYTE GeForce GTX 1660 OC has a lower FP16 performance than the average graphics card (10.5 TFLOPS vs 29.725 TFLOPS). The average graphics card has FP16 performance of 29.725 TFLOPS.
66.7% lower FP64 performance
GIGABYTE GeForce GTX 1660 OC has a lower FP64 performance than the average graphics card (0.2 TFLOPS vs 0.48 TFLOPS). The average graphics card has FP64 performance of 0.48 TFLOPS.
2,944 fewer FP32 units
GIGABYTE GeForce GTX 1660 OC has fewer FP32 units than the average graphics card (1,408 vs 4,352). The average graphics card has 4,352 FP32 units.
6 GB less VRAM
GIGABYTE GeForce GTX 1660 OC has fewer VRAM than the average graphics card (6 GB vs 12 GB). The average graphics card has 12 GB VRAM.
64 bit narrower memory bus
GIGABYTE GeForce GTX 1660 OC 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.
57.1% lower memory bandwidth
GIGABYTE GeForce GTX 1660 OC has a lower memory bandwidth than the average graphics card (192 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
57.9% slower memory speed
GIGABYTE GeForce GTX 1660 OC has a lower effective memory speed than the average graphics card (8,002 MHz vs 19,000 MHz). The average graphics card reaches an effective memory speed of 19,000 MHz.
95.8% smaller L2 cache
GIGABYTE GeForce GTX 1660 OC has fewer L2 cache than the average graphics card (1 MB vs 24 MB). The average graphics card has 24 MB L2 cache.
50% smaller L1 cache
GIGABYTE GeForce GTX 1660 OC has fewer L1 cache than the average graphics card (64 vs 128). The average graphics card has 128 L1 cache.
2.4x larger process node
GIGABYTE GeForce GTX 1660 OC has a higher process node than the average graphics card (12 nm vs 5 nm). The average graphics card uses a process node of 5 nm.
No DLSS support
GIGABYTE GeForce GTX 1660 OC does not support DLSS, the average graphics card does.
No ray tracing
GIGABYTE GeForce GTX 1660 OC does not support ray tracing, the average graphics card does.
Older PCIe version
GIGABYTE GeForce GTX 1660 OC supports an older PCIe version than the average graphics card (3 vs 4.0).
No AI upscalers
GIGABYTE GeForce GTX 1660 OC does not support AI upscalers, the average graphics card does.
4 older
GIGABYTE GeForce GTX 1660 OC was released earlier than the average graphics card (2019 vs 2023).
March 2019
Worse SAM support
GIGABYTE GeForce GTX 1660 OC offers worse SAM support than the average graphics card (no vs yes).
Lower VRS tier
GIGABYTE GeForce GTX 1660 OC supports a lower VRS tier than the average graphics card (Tier 1 vs Tier 2).
Older DirectX version
GIGABYTE GeForce GTX 1660 OC supports an older DirectX version than the average graphics card (12 vs 12 Ultimate).
Older encoder generation
GIGABYTE GeForce GTX 1660 OC uses an older encoder generation than the average graphics card (6 vs 8). The average graphics card uses encoder generation 8.
Older OpenCL version
GIGABYTE GeForce GTX 1660 OC supports an older OpenCL version than the average graphics card (1.2 vs 3.0).
No sampler feedback
GIGABYTE GeForce GTX 1660 OC does not support sampler feedback, the average graphics card does.
71.2% fewer transistors
GIGABYTE GeForce GTX 1660 OC has fewer transistors than the average graphics card (6,600 million vs 22,900 million). The average graphics card has 22,900 million transistors.
Older FSR version
GIGABYTE GeForce GTX 1660 OC supports an older FSR version than the average graphics card (3 vs 3.1).
No AV1 encoding
GIGABYTE GeForce GTX 1660 OC does not support AV1 encoding, the average graphics card does.
No AV1 decoding
GIGABYTE GeForce GTX 1660 OC does not support AV1 decoding, the average graphics card does.
Narrower encode codec support
GIGABYTE GeForce GTX 1660 OC supports narrower hardware encode codec support than the average graphics card (H.264/H.265 vs H.264/H.265/AV1/VP9).
Narrower decode codec support
GIGABYTE GeForce GTX 1660 OC supports narrower hardware decode codec support than the average graphics card (H.264/H.265/VP9/MPEG-2/VC-1 vs H.264/H.265/AV1/VP9/MPEG-2/VC-1).
Older HDMI version
GIGABYTE GeForce GTX 1660 OC supports an older HDMI version than the average graphics card (2.0b vs 2.1).
Older HDCP version
GIGABYTE GeForce GTX 1660 OC supports an older HDCP version than the average graphics card (2.2 vs 2.3).
No 3D output
GIGABYTE GeForce GTX 1660 OC does not support 3D output, the average graphics card does.
Older NVDEC generation
GIGABYTE GeForce GTX 1660 OC has a lower NVDEC generation than the average graphics card (4 vs 6). The average graphics card offers NVDEC generation 6.
73% lower DisplayPort bandwidth
GIGABYTE GeForce GTX 1660 OC has a lower DisplayPort bandwidth than the average graphics card (5.4 Gbps vs 20 Gbps). The average graphics card has DisplayPort bandwidth of 20 Gbps.
1 fewer fans
GIGABYTE GeForce GTX 1660 OC has fewer fans than the average graphics card (2 vs 3).
No dual BIOS
GIGABYTE GeForce GTX 1660 OC does not include dual BIOS, the average graphics card does.
11 °C higher idle temperature
GIGABYTE GeForce GTX 1660 OC has a higher idle temperature than the average graphics card (48 °C vs 37 °C). The average graphics card has an idle temperature of 37 °C.
6 GB less VRAM
GIGABYTE GeForce GTX 1660 OC has fewer VRAM than the average graphics card (6 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
GIGABYTE GeForce GTX 1660 OC has fewer VRAM than the average graphics card (6 GB vs 12 GB). The average graphics card has 12 GB VRAM.6 GB vs 12 GB
40 fewer ray tracing cores
GIGABYTE GeForce GTX 1660 OC has fewer ray tracing cores than the average graphics card (0 vs 40). The average graphics card has 40 ray tracing cores.
What it is: Number of dedicated ray tracing processing cores or units
When it matters: When you care about ray-traced lighting, reflections, and shadows in newer games.
Importance: HIGH
GIGABYTE GeForce GTX 1660 OC has fewer ray tracing cores than the average graphics card (0 vs 40). The average graphics card has 40 ray tracing cores.0 vs 40
26.9% lower boost clock speed
GIGABYTE GeForce GTX 1660 OC has a lower boost GPU clock than the average graphics card (1,830 MHz vs 2,505 MHz). The average graphics card has a boost GPU clock of 2,505 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
GIGABYTE GeForce GTX 1660 OC has a lower boost GPU clock than the average graphics card (1,830 MHz vs 2,505 MHz). The average graphics card has a boost GPU clock of 2,505 MHz.1830 MHz vs 2505 MHz
18 fewer compute units
GIGABYTE GeForce GTX 1660 OC has fewer compute units than the average graphics card (22 vs 40). The average graphics card has 40 compute units.
What it is: Total number of shader multiprocessors or compute units
When it matters: When you want a better sense of the GPU's overall parallel hardware resources before relying on game benchmarks alone.
Importance: HIGH
GIGABYTE GeForce GTX 1660 OC has fewer compute units than the average graphics card (22 vs 40). The average graphics card has 40 compute units.22 vs 40
2.4x larger process node
GIGABYTE GeForce GTX 1660 OC has a higher process node than the average graphics card (12 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
GIGABYTE GeForce GTX 1660 OC has a higher process node than the average graphics card (12 nm vs 5 nm). The average graphics card uses a process node of 5 nm.12 nm vs 5 nm
64 bit narrower memory bus
GIGABYTE GeForce GTX 1660 OC 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
GIGABYTE GeForce GTX 1660 OC 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
1 fewer fans
GIGABYTE GeForce GTX 1660 OC has fewer fans than the average graphics card (2 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
GIGABYTE GeForce GTX 1660 OC has fewer fans than the average graphics card (2 vs 3).2 vs 3
No DLSS support
GIGABYTE GeForce GTX 1660 OC does not support DLSS, the average graphics card does.
What it is: Supports NVIDIA DLSS upscaling technology
When it matters: When you play NVIDIA-supported games and want better frame rates at higher settings.
Importance: LOW
GIGABYTE GeForce GTX 1660 OC does not support DLSS, the average graphics card does.

Platform & Features

Connectivity & Media

Power & Cooling

Graphic comparison of GIGABYTE GeForce GTX 1660 OC and other products in the Graphics cards category

Attribute category

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Third-party reviews

United Kingdom

United States

(Reviews last updated: June 2026)

What customers like about GIGABYTE GeForce GTX 1660 OC?

Excellent 1080p performance, handling most AAA titles at high settings smoothly.
Efficient Windforce 2X cooling system keeps the card consistently cool during heavy use.
Remarkably quiet operation, even under significant graphical load.
Highly energy-efficient with low power consumption, requiring only a standard 8-pin connector.
Solid price-to-performance value compared to older mid-range cards like the GTX 1060.
Compact 8.8-inch design fits easily into smaller MicroATX cases.

What customers dislike about GIGABYTE GeForce GTX 1660 OC?

Struggles to maintain stable 60 FPS in demanding games at 1440p or 4K resolutions.
Uses older GDDR5 memory instead of the faster GDDR6 found in 'Ti' or 'Super' models.
Plastic backplate and shroud feel less premium and may not aid heat dissipation as well as metal.
Proprietary Aorus Engine software can be buggy or prone to crashing during tuning.
Lacks dedicated Ray Tracing and DLSS cores found in the RTX series.
Limited long-term future-proofing due to only 6GB of VRAM.

Expert reviews

au.pcmag.com

15/03/2019

Summary of the review

Gigabyte GeForce GTX 1660 OC 6G Review - PCMag Australia

Performance and Specifications The Gigabyte GeForce GTX 1660 OC 6G is a budget-friendly mainstream graphics card built on Nvidia's Turing TU116 architecture. It features 6GB of GDDR5 memory, a 1530 MHz base clock, and an 1830 MHz boost clock. Designed for 1080p gaming, it easily delivers over 60 frames per second on modern AAA games. It pushes even higher frame rates on popular esports titles like Apex Legends and Counter-Strike: Global Offensive. Measuring 8.8 inches, the card requires a single 8-pin power connector. It includes three DisplayPort 1.4 outputs and one HDMI 2.0b port, omitting DVI and VirtualLink connections. Pros, Cons, and Verdict A major benefit of this card is its exceptional value, outperforming competing AMD Radeon RX 590 cards at a lower price point. It operates with low noise output because its dual fans remain completely off during light workloads. However, the GPU ran somewhat hot under heavy stress tests, peaking at 71 degrees Celsius. Additionally, further overclocking proved rocky due to buggy proprietary Aorus Engine software that caused system crashes. Despite these software and temperature flaws, the card...

trustedreviews.com

14/03/2019

Summary of the review

Gigabyte GeForce GTX 1660 Review

The Trusted Reviews review of the Gigabyte GeForce GTX 1660 highlights the card as a strong, budget-friendly option for high-performance 1080p gaming, utilizing Nvidia's Turing architecture to deliver excellent price-to-performance without expensive ray tracing hardware. Key advantages include its capability to run esports and legacy titles well above 60fps, averaging 96fps in Dirt Rally, alongside intelligent adaptive shading for optimized performance in modern battle royale titles. However, the review outlines limitations, noting the card lacks hardware-accelerated ray tracing and DLSS, restricting it from premium visual features found in higher-end models. While capable, it struggles to maintain high frame rates on demanding AAA games at resolutions above 1080p, and its use of 6GB GDDR5 memory provides less future-proofing compared to Ti or Super variants. YouTube

techradar.com

14/03/2019

Summary of the review

Gigabyte GeForce GTX 1660 OC 6G review - TechRadar

The Gigabyte GeForce GTX 1660 OC 6G is evaluated as an exceptional entry-level graphics card that delivers impressive 1080p gaming performance and enhanced streaming capabilities for its budget-friendly price point of $219 / £219 / AU$389. Despite being built on the Nvidia Turing architecture, this card cuts costs by omitting ray-tracing (RT) cores, Tensor cores, and GDDR6 video memory, opting instead for standard 8Gbps GDDR5 memory. To compensate, Gigabyte equips the model with a 1,830MHz factory overclock (45MHz over reference speeds) alongside dual Windforce 2X cooling fans and a robust heatsink. Performance testing reveals that the card comfortably runs modern titles like Hitman 2 at 90 to 100 frames per second (fps) in Full HD, completely outpacing older cards like the GTX 1060 and thoroughly beating the more expensive AMD Radeon RX 590. The core advantages (pros) of this graphics card include its highly affordable pricing, superb 1080p gaming benchmarks, and the inclusion of Nvidia's updated NVENC encoder, which offers up to 25% HEVC bit-rate savings for budget-conscious streamers. Conversely, the primary disadvantage (con) is its inconsistent performance at higher...

uk.pcmag.com

14/03/2019

Summary of the review

Gigabyte GeForce GTX 1660 OC 6G Review - PCMag UK

The Gigabyte GeForce GTX 1660 OC 6G is a budget-friendly, mainstream graphics card based on Nvidia's Turing TU116 architecture. Priced at a base MSRP of $219 (tested at £309.93), it functions as a scaled-down version of the GTX 1660 Ti, notably swapping out GDDR6 memory for 6GB of GDDR5 while maintaining a 192.1GBps bandwidth. Designed strictly for 1080p gaming, it lacks the dedicated Tensor and RT cores found in the premium RTX lineup. However, it reliably pushes over 60fps in AAA titles like Shadow of the Tomb Raider and Far Cry 5, and easily handles high-refresh esports gaming in Apex Legends and Counter-Strike: Global Offensive. Physically, the card spans 8.8 inches, requires a single 8-pin power connector, and features three DisplayPort 1.4 outputs alongside one HDMI 2.0b port, omitting older DVI and VirtualLink connections. The card delivers strong value, but it has distinct trade-offs. The primary pros include its highly competitive price-to-performance ratio, making it a superior value leader over the aging AMD Radeon RX 590, and its low noise output driven by a dual-fan setup that remains completely passive...

pcmag.com

14/03/2019

Summary of the review

Gigabyte GeForce GTX 1660 OC 6G Review - PCMag

The Gigabyte GeForce GTX 1660 OC 6G is a budget-friendly, Turing-based graphics card optimized for high-performance 1080p gaming, skipping premium features like ray tracing and DLSS to maximize value. It features a dual-fan Windforce design that ensures quiet operation while delivering solid 1080p performance and capable 1440p entry-level gaming. YouTube · Pros highlighted include excellent price-to-performance, quiet acoustics, and strong 1080p capabilities. Cons include higher thermal output under load, limited manual overclocking stability, and a minimalist design lacking RGB lighting.

cowcotland.com

25/06/2019

Summary of the review

Test carte graphique Gigabyte GTX 1660 Gaming OC.

The Cowcotland review awards the Gigabyte GTX 1660 Gaming OC a Gold Award, highlighting it as an excellent, affordable option for 1080p gaming with a capable Windforce triple-fan cooler and silent Fan Stop technology. Priced around €250, the card offers reliable framerates for modern titles, though it lacks the hardware-accelerated ray tracing and DLSS found on higher-tier Turing cards. Limitations noted by the review include inadequate performance for demanding 1440p gaming, with suggestions to upgrade to a GTX 1660 Ti for better future-proofing. While the card performs well at 1080p, its reliance on a cut-down TU116 chip means it does not support advanced RTX features.

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