ASUS Dual Radeon RX 6600 XT OC Edition Review | 118 Data compared

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  • Avg. price in UK: ~£540
  • Avg. price in US: ~$480
  • VRAM: 8 GB
  • Memory bus width: 128 bit
  • Thermal Design Power (TDP): 160 W

ASUS Dual Radeon RX 6600 XT OC Edition review. Compare 118 technical specifications and user reviews to see how it ranks among graphics cards and if it is worth buying.

5.8

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%

5.5

Technical Score

10.0%

8.9

User score

Good
5.5

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%

4.7

Performance

24.0%

3.2

Memory

12.0%

8.1

Power & Cooling

11.0%

8.4

Platform & Features

5.0%

7.7

Design

4.0%

9.0

Connectivity & Media

Good
8.9

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%

9.0

User reviews

30.0%

8.5

Popularity

User score:
United Kingdom
amazon
4.4
(102)
amazon
4.6
(99)
United States
Amazon_logo.png
4.6
(105)

(Reviews last updated: June 2026)

Excellent
  • 3.2
    Gaming

    Score components:

    45.0%

    2.5

    Floating-point performance

    25.0%

    2.8

    VRAM

    20.0%

    2.7

    Ray tracing cores / units

    10.0%

    8.8

    PCI Express (PCIe) version

  • 5.1
    Video editing

    Score components:

    35.0%

    7.0

    AV1 encode

    30.0%

    2.8

    VRAM

    20.0%

    2.5

    Floating-point performance

    15.0%

    8.8

    PCI Express (PCIe) version

  • 3.2
    1080p

    Score components:

    55.0%

    2.5

    Floating-point performance

    25.0%

    2.8

    VRAM

    10.0%

    2.7

    Ray tracing cores / units

    10.0%

    8.8

    PCI Express (PCIe) version

  • 2.9
    1440p

    Score components:

    50.0%

    2.5

    Floating-point performance

    30.0%

    2.8

    VRAM

    15.0%

    2.7

    Ray tracing cores / units

    5.0%

    8.8

    PCI Express (PCIe) version

  • 2.9
    4K

    Score components:

    40.0%

    2.5

    Floating-point performance

    35.0%

    2.8

    VRAM

    20.0%

    2.7

    Ray tracing cores / units

    5.0%

    8.8

    PCI Express (PCIe) version

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Best prices in UK

Best rankings

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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 Asus Dual Radeon RX 6600 XT OC Edition features 8GB of GDDR6 memory, 2048 stream processors, and a boosted clock speed of up to 2607 MHz in OC mode. Built on the AMD RDNA 2 architecture, it utilizes a dual-fan Axial-tech design and a 2.5-slot footprint for efficient cooling. Key pros include excellent 1080p gaming performance, a protective backplate, and 0dB technology for silent operation under light loads. However, cons include limited 1440p capabilities in demanding titles and a high MSRP relative to its performance tier.

Technical Specifications of ASUS Dual Radeon RX 6600 XT OC Edition

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%

4.7

Performance

24.0%

3.2

Memory

12.0%

8.1

Power & Cooling

11.0%

8.4

Platform & Features

5.0%

7.7

Design

4.0%

9.0

Connectivity & Media

5.5
ASUS Dual Radeon RX 6600 XT OC Edition has a technical score of 5.46 points, which is lower than that of 72.2% 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%

9.0

User reviews

30.0%

8.5

Popularity

User score:
United Kingdom
amazon
4.4
(102)
amazon
4.6
(99)
United States
Amazon_logo.png
4.6
(105)

(Reviews last updated: June 2026)

8.9
ASUS Dual Radeon RX 6600 XT OC Edition has a user score of 8.86 points, which is higher than that of 76% 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.
8.5
ASUS Dual Radeon RX 6600 XT OC Edition has a popularity of 8.5 points, which is higher than 74% 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%

5.8

Overall score

40.0%

7.7

Price

6.4
ASUS Dual Radeon RX 6600 XT OC Edition has a quality-to-price ratio of 6.4 points, which is lower than 67% 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

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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

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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

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PassMark (DirectCompute) result
What it is: PassMark score for DirectCompute performance tests
When it matters: When compute workloads matter alongside gaming performance.

Importance: LOW

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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

10.68 TFLOPS
ASUS Dual Radeon RX 6600 XT OC Edition delivers 10.68 TFLOPS floating-point performance, which is lower than that of 76.6% of graphics cards and equal to that of 0.1% 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

8 GB
ASUS Dual Radeon RX 6600 XT OC Edition has 8 GB of VRAM, which is less than 57.6% of graphics cards and equal to 25.1% 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

GDDR6
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

GDDR6
ASUS Dual Radeon RX 6600 XT OC Edition uses GDDR6 memory, which is newer than on 16.6% of graphics cards and equal to 39.1% 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

128 bit
ASUS Dual Radeon RX 6600 XT OC Edition uses a 128 bit memory bus, which is narrower than that of 69.8% of graphics cards and equal to that of 26.1% 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

256 GB/s
ASUS Dual Radeon RX 6600 XT OC Edition reaches 256 GB/s memory bandwidth, which is lower than that of 80.5% of graphics cards and equal to that of 2.7% 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

4.0
ASUS Dual Radeon RX 6600 XT OC Edition supports PCIe 4.0, which is newer than on 22.5% of graphics cards and equal to 52% 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

x8
ASUS Dual Radeon RX 6600 XT OC Edition uses x8 PCIe lanes, which is fewer than 68.6% of graphics cards and equal to 20.9% 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

12 Ultimate
ASUS Dual Radeon RX 6600 XT OC Edition supports DirectX 12 Ultimate, which is more advanced than on 12.5% of graphics cards and equal to 87.5% of graphics cards.
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

1.4
ASUS Dual Radeon RX 6600 XT OC Edition supports Vulkan 1.4, which is more advanced than on 26.6% of graphics cards and equal to 73.4% 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
ASUS Dual Radeon RX 6600 XT OC Edition supports OpenGL 4.6, which is more advanced than on 4.8% of graphics cards and equal to 95.2% of graphics cards.
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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

4
ASUS Dual Radeon RX 6600 XT OC Edition 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

7680x4320
ASUS Dual Radeon RX 6600 XT OC Edition supports a maximum digital resolution of 7680x4320, which is higher than that of 44.4% of graphics cards and equal to that of 55.6% of graphics cards.
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

3
ASUS Dual Radeon RX 6600 XT OC Edition offers 3 DisplayPort outputs, which is more than 20.9% of graphics cards and equal to 77.3% 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

1.4a
ASUS Dual Radeon RX 6600 XT OC Edition supports DisplayPort 1.4a, which is more advanced than on 22.7% of graphics cards and equal to 44.2% 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

8.1 Gbps
ASUS Dual Radeon RX 6600 XT OC Edition supports DisplayPort link rates up to 8.1 Gbps, which is slower than on 50.4% of graphics cards and equal to 40.5% 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

160 W
ASUS Dual Radeon RX 6600 XT OC Edition has a TDP of 160 W, which is lower than that of 68% of graphics cards and equal to that of 4.8% 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

160 W
ASUS Dual Radeon RX 6600 XT OC Edition draws 160 W under peak load, which is lower than 69.3% of graphics cards and equal to 4.4% 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

500 W
ASUS Dual Radeon RX 6600 XT OC Edition recommends a 500 W PSU, which is lower than that of 76.2% of graphics cards and equal to that of 9.6% 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

160 W
ASUS Dual Radeon RX 6600 XT OC Edition has a board power limit of 160 W, which is lower than that of 69.8% of graphics cards and equal to that of 4.5% 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

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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

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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

243 mm
ASUS Dual Radeon RX 6600 XT OC Edition is 243 mm long, which is shorter than 72.7% of graphics cards and equal in length to 0.2% 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

134 mm
ASUS Dual Radeon RX 6600 XT OC Edition is 134 mm tall, which is taller than 65% of graphics cards and equal in height to 1.7% 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

2.5 slot/s
ASUS Dual Radeon RX 6600 XT OC Edition occupies 2.5 slot/s, which is wider than 53.2% of graphics cards and equal in width to 11.7% 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

770 g
ASUS Dual Radeon RX 6600 XT OC Edition weighs 770 g, which is lighter than 73.5% of graphics cards.
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ASUS Dual Radeon RX 6600 XT OC Edition vs the average graphics card

  • 4.3% higher boost clock speed
    ASUS Dual Radeon RX 6600 XT OC Edition has a higher boost GPU clock than the average graphics card (2,607 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

    ASUS Dual Radeon RX 6600 XT OC Edition has a higher boost GPU clock than the average graphics card (2,607 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.2607 MHz vs 2500 MHz
  • Supports ECC memory
    ASUS Dual Radeon RX 6600 XT OC Edition supports ECC memory, the average graphics card does not.
    What it is: Supports error-correcting code memory for higher reliability
    When it matters: When stability and error correction matter more than pure gaming value.

    Importance: LOW

    ASUS Dual Radeon RX 6600 XT OC Edition supports ECC memory, the average graphics card does not.
  • 23.1% lower PSU requirement
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower PSU requirement than the average graphics card (500 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

    ASUS Dual Radeon RX 6600 XT OC Edition has a lower PSU requirement than the average graphics card (500 W vs 650 W). The average graphics card has a PSU requirement of 650 W.500 W vs 650 W
  • 25.6% lower TDP
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower TDP than the average graphics card (160 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

    ASUS Dual Radeon RX 6600 XT OC Edition has a lower TDP than the average graphics card (160 W vs 215 W). The average graphics card has a TDP of 215 W.160 W vs 215 W
  • 14.3% faster VRAM clock
    ASUS Dual Radeon RX 6600 XT OC Edition has a higher VRAM clock than the average graphics card (2,000 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

    ASUS Dual Radeon RX 6600 XT OC Edition has a higher VRAM clock than the average graphics card (2,000 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.2000 MHz vs 1750 MHz
  • 42.37 mm shorter card length
    ASUS Dual Radeon RX 6600 XT OC Edition is shorter than the average graphics card (243 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

    ASUS Dual Radeon RX 6600 XT OC Edition is shorter than the average graphics card (243 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.243 mm vs 285.37 mm
  • Better FP64 ratio
    ASUS Dual Radeon RX 6600 XT OC Edition has a better FP64 ratio than the average graphics card (1:16 vs 1:64).
    What it is: Ratio of double-precision (FP64) to single-precision (FP32) performance
    When it matters: When you need to know whether FP64 is merely present or genuinely useful.

    Importance: LOW

    ASUS Dual Radeon RX 6600 XT OC Edition has a better FP64 ratio than the average graphics card (1:16 vs 1:64).1:16 vs 1:64
  • 27.3% lower board power limit
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower board power limit than the average graphics card (160 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

    ASUS Dual Radeon RX 6600 XT OC Edition has a lower board power limit than the average graphics card (160 W vs 220 W). The average graphics card has a board power limit of 220 W.160 W vs 220 W
  • 4.3% higher boost clock speed
    ASUS Dual Radeon RX 6600 XT OC Edition has a higher boost GPU clock than the average graphics card (2,607 MHz vs 2,500 MHz). The average graphics card has a boost GPU clock of 2,500 MHz.
  • Better FP64 ratio
    ASUS Dual Radeon RX 6600 XT OC Edition has a better FP64 ratio than the average graphics card (1:16 vs 1:64).
  • Supports ECC memory
    ASUS Dual Radeon RX 6600 XT OC Edition supports ECC memory, the average graphics card does not.
  • 14.3% faster VRAM clock
    ASUS Dual Radeon RX 6600 XT OC Edition has a higher VRAM clock than the average graphics card (2,000 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.
  • Supports NVLink
    ASUS Dual Radeon RX 6600 XT OC Edition supports NVLink, the average graphics card does not.
  • 23.1% lower PSU requirement
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower PSU requirement than the average graphics card (500 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
  • 25.6% lower TDP
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower TDP than the average graphics card (160 W vs 215 W). The average graphics card has a TDP of 215 W.
  • 27.3% lower board power limit
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower board power limit than the average graphics card (160 W vs 220 W). The average graphics card has a board power limit of 220 W.
  • 8 °C lower load temperature
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower load temperature than the average graphics card (59 °C vs 67 °C). The average graphics card has a load temperature of 67 °C.
  • 63.6% lower idle power draw
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower idle power draw than the average graphics card (4 W vs 11 W). The average graphics card has an idle power draw of 11 W.
  • 42.37 mm shorter card length
    ASUS Dual Radeon RX 6600 XT OC Edition is shorter than the average graphics card (243 mm vs 285.37 mm). The average graphics card has a length of 285.37 mm.
  • 16 fewer ray tracing cores
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer ray tracing cores than the average graphics card (32 vs 48). The average graphics card has 48 ray tracing cores.
  • 56 fewer TMUs
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer TMUs than the average graphics card (128 vs 184). The average graphics card has 184 TMUs.
  • 8 fewer compute units
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer compute units than the average graphics card (32 vs 40). The average graphics card has 40 compute units.
  • 53.5% lower FP32 performance
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower FP32 performance than the average graphics card (10.6 TFLOPS vs 22.86 TFLOPS). The average graphics card has FP32 performance of 22.86 TFLOPS.
  • 11.9% lower texture rate
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower texture rate than the average graphics card (331.9 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.
  • 2,304 fewer FP32 units
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer FP32 units than the average graphics card (2,048 vs 4,352). The average graphics card has 4,352 FP32 units.
  • 128 bit narrower memory bus
    ASUS Dual Radeon RX 6600 XT OC Edition has a narrower memory bus than the average graphics card (128 bit vs 256 bit). The average graphics card has a memory bus width of 256 bit.
  • 4 GB less VRAM
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer VRAM than the average graphics card (8 GB vs 12 GB). The average graphics card has 12 GB VRAM.
  • 42.9% lower memory bandwidth
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower memory bandwidth than the average graphics card (256 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
  • 93.8% smaller L2 cache
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer L2 cache than the average graphics card (2 MB vs 32 MB). The average graphics card has 32 MB L2 cache.
  • 15.8% slower memory speed
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower effective memory speed than the average graphics card (16,000 MHz vs 19,000 MHz). The average graphics card reaches an effective memory speed of 19,000 MHz.
  • 50% less Infinity Cache
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer Infinity Cache than the average graphics card (32 MB vs 64 MB). The average graphics card has 64 MB Infinity Cache.
  • No DLSS support
    ASUS Dual Radeon RX 6600 XT OC Edition does not support DLSS, the average graphics card does.
  • Fewer PCIe lanes
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer PCIe lanes than the average graphics card (x8 vs x16). The average graphics card has x16 PCIe lanes.
  • 40% larger process node
    ASUS Dual Radeon RX 6600 XT OC Edition has a higher process node than the average graphics card (7 nm vs 5 nm). The average graphics card uses a process node of 5 nm.
  • No XeSS support
    ASUS Dual Radeon RX 6600 XT OC Edition does not support XeSS, the average graphics card does.
  • 2 older
    ASUS Dual Radeon RX 6600 XT OC Edition was released earlier than the average graphics card (2,021 vs 2,023).
  • Older OpenCL version
    ASUS Dual Radeon RX 6600 XT OC Edition supports an older OpenCL version than the average graphics card (2.1 vs 3.0).
  • No AV1 encoding
    ASUS Dual Radeon RX 6600 XT OC Edition does not support AV1 encoding, the average graphics card does.
  • 33.3% lower HDMI bandwidth
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower HDMI bandwidth than the average graphics card (32 Gbps vs 48 Gbps). The average graphics card has HDMI bandwidth of 48 Gbps.
  • 1 fewer fans
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer fans than the average graphics card (2 vs 3).
  • 17 °C lower thermal ceiling
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower thermal ceiling than the average graphics card (110 °C vs 93 °C). The average graphics card has a thermal ceiling of 93 °C.
  • No RGB lighting
    ASUS Dual Radeon RX 6600 XT OC Edition does not include RGB lighting, the average graphics card does.
  • 0.5 slot/s wider design
    ASUS Dual Radeon RX 6600 XT OC Edition occupies more slots than the average graphics card (2.5 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.
  • 7 mm higher card profile
    ASUS Dual Radeon RX 6600 XT OC Edition is taller than the average graphics card (134 mm vs 127 mm). The average graphics card has a height of 127 mm.
  • 128 bit narrower memory bus
    ASUS Dual Radeon RX 6600 XT OC Edition has a narrower memory bus than the average graphics card (128 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

    ASUS Dual Radeon RX 6600 XT OC Edition has a narrower memory bus than the average graphics card (128 bit vs 256 bit). The average graphics card has a memory bus width of 256 bit.128 bit vs 256 bit
  • 1 fewer fans
    ASUS Dual Radeon RX 6600 XT OC Edition 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

    ASUS Dual Radeon RX 6600 XT OC Edition has fewer fans than the average graphics card (2 vs 3).2 vs 3
  • 16 fewer ray tracing cores
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer ray tracing cores than the average graphics card (32 vs 48). The average graphics card has 48 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

    ASUS Dual Radeon RX 6600 XT OC Edition has fewer ray tracing cores than the average graphics card (32 vs 48). The average graphics card has 48 ray tracing cores.32 vs 48
  • No DLSS support
    ASUS Dual Radeon RX 6600 XT OC Edition 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

    ASUS Dual Radeon RX 6600 XT OC Edition does not support DLSS, the average graphics card does.
  • 4 GB less VRAM
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer VRAM than the average graphics card (8 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

    ASUS Dual Radeon RX 6600 XT OC Edition has fewer VRAM than the average graphics card (8 GB vs 12 GB). The average graphics card has 12 GB VRAM.8 GB vs 12 GB
  • 42.9% lower memory bandwidth
    ASUS Dual Radeon RX 6600 XT OC Edition has a lower memory bandwidth than the average graphics card (256 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
    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

    ASUS Dual Radeon RX 6600 XT OC Edition has a lower memory bandwidth than the average graphics card (256 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.256 GB/s vs 448 GB/s
  • Fewer PCIe lanes
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer PCIe lanes than the average graphics card (x8 vs x16). The average graphics card has x16 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

    ASUS Dual Radeon RX 6600 XT OC Edition has fewer PCIe lanes than the average graphics card (x8 vs x16). The average graphics card has x16 PCIe lanes.x8 vs x16
  • 56 fewer TMUs
    ASUS Dual Radeon RX 6600 XT OC Edition has fewer TMUs than the average graphics card (128 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

    ASUS Dual Radeon RX 6600 XT OC Edition has fewer TMUs than the average graphics card (128 vs 184). The average graphics card has 184 TMUs.128 vs 184

Graphic comparison of ASUS Dual Radeon RX 6600 XT OC Edition and

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Third-party reviews

United States

(Reviews last updated: June 2026)

What customers like about ASUS Dual Radeon RX 6600 XT OC Edition?

  • Exceptional 1080p performance, maintaining high frame rates (100+ FPS) in modern titles at ultra settings
  • Highly efficient cooling system with load temperatures often staying below 60°C
  • Extremely quiet operation, featuring 0dB technology where fans stop completely during light use
  • Very low power consumption, drawing roughly 4W at idle and staying under 150W under full load
  • Compact 2.5-slot design (approx. 243mm) makes it compatible with smaller PC cases
  • Reliable build quality with a protective aluminum backplate to prevent PCB flex

What customers dislike about ASUS Dual Radeon RX 6600 XT OC Edition?

  • Weak ray tracing performance compared to similarly priced NVIDIA competitors
  • Performance drops significantly at 1440p and 4K resolutions due to the 128-bit memory bus
  • Questionable value proposition as the MSRP is considered high for a card primarily aimed at 1080p
  • Limited to PCIe 4.0 x8 interface, which can lead to performance loss on older PCIe 3.0 systems
  • Lacks RGB lighting, which may be a downside for users prioritizing aesthetic customization
  • Some users reported potential driver-related stuttering in specific competitive titles like Warzone

Expert reviews

T
tweaktown.com
01/09/2021

The ASUS Radeon RX 6600 XT DUAL OC Edition is a mainstream, non-ROG graphics card powered by the Navi 23 architecture and equipped with 8GB of GDDR6 memory. It is designed primarily as a highly efficient 1080p gaming solution, capable of delivering over 60 FPS in AAA titles and exceeding 120 FPS in esports games. While the card can manage 60 FPS at 1440p resolution in select...Read more

T
tech.everyeye.it
10/08/2021

The AMD Radeon RX 6600XT, reviewed here via the Gigabyte Gaming OC Pro variant, is designed primarily as a high-performing graphics card for 1080p (Full HD) gaming, while surprisingly excelling at 1440p (2K) resolutions. Built on a smaller Navi 23 RDNA2 architecture die, it features 32 Compute Units, 2,048 stream processors, and 8GB of GDDR6 memory on a 128-bit bus. In synthetic...Read more

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