OVERALL

SPECS

VS AVERAGE

REVIEWS

ALTERNATIVES

ASRock Radeon RX 6600 XT Challenger D OC Review | 118 Data compared

Avg. price in UK: ~£400
Avg. price in US: ~$280
VRAM: 8 GB
Memory bus width: 128 bit
Thermal Design Power (TDP): 160 W

ASRock Radeon RX 6600 XT Challenger D 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.

6.4

Good

6.1

Good

9.1

Exceptional

4.1
Gaming
Score components:
45.0%
2.5
Floating-point performance
25.0%
4.9
VRAM
20.0%
4.6
Ray tracing cores / units
10.0%
8.8
PCI Express (PCIe) version
5.7
Video editing
Score components:
35.0%
7.0
AV1 encode
30.0%
4.9
VRAM
20.0%
2.5
Floating-point performance
15.0%
8.8
PCI Express (PCIe) version
3.9
1080p
Score components:
55.0%
2.5
Floating-point performance
25.0%
4.9
VRAM
10.0%
4.6
Ray tracing cores / units
10.0%
8.8
PCI Express (PCIe) version
3.8
1440p
Score components:
50.0%
2.5
Floating-point performance
30.0%
4.9
VRAM
15.0%
4.6
Ray tracing cores / units
5.0%
8.8
PCI Express (PCIe) version
4.1
4K
Score components:
40.0%
2.5
Floating-point performance
35.0%
4.9
VRAM
20.0%
4.6
Ray tracing cores / units
5.0%
8.8
PCI Express (PCIe) version

Best prices in UK

£?

Best rankings

#174 in Best 8 GB Graphic Cards
#202 in Best AMD Radeon Graphic Cards
#814 in Best Graphic Cards
#876 in Best Graphic Cards For Gaming
#886 in Best Graphic Cards For 1440p Gaming

Verdict

The ASRock Radeon RX 6600 XT Challenger D OC is a dual-fan graphics card featuring 8GB of GDDR6 memory on a 128-bit interface, a boost clock of up to 2593 MHz, and 2048 stream processors. Built on the 7nm RDNA 2 architecture with PCI Express 4.0 support, it delivers excellent 1080p gaming performance with high power efficiency and a compact two-slot design. However, it is limited by a narrow memory bus which hampers 4K performance, and its ray-tracing capabilities are modest compared to competitors.

Technical Specifications of graphics card ASRock Radeon RX 6600 XT Challenger D OC

Overall score

6.4

Show more

Hide

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

5.5

Show more

Hide

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

Show more

Memory

3.8

Show more

Hide

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

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

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

Show more

Platform & Features

9.0

Show more

Hide

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

Show more

Connectivity & Media

9.1

Show more

Hide

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

Show more

Power & Cooling

8.4

Show more

Hide

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

160 W

Show more

Design

8.8

Show more

Hide

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

269 x 132 x 41 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

Show more

ASRock Radeon RX 6600 XT Challenger D OC vs the average graphics card

Why is ASRock Radeon RX 6600 XT Challenger D OC better than the average graphics card?

Show more

Hide

3.5% higher boost clock speed
ASRock Radeon RX 6600 XT Challenger D OC has a higher boost GPU clock than the average graphics card (2,593 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
ASRock Radeon RX 6600 XT Challenger D OC has a higher boost GPU clock than the average graphics card (2,593 MHz vs 2,505 MHz). The average graphics card has a boost GPU clock of 2,505 MHz.2593 MHz vs 2505 MHz
84 mm lower card height
ASRock Radeon RX 6600 XT Challenger D OC is shorter than the average graphics card (41 mm vs 125 mm). The average graphics card has a height of 125 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
ASRock Radeon RX 6600 XT Challenger D OC is shorter than the average graphics card (41 mm vs 125 mm). The average graphics card has a height of 125 mm.41 mm vs 125 mm
23.1% lower PSU requirement
ASRock Radeon RX 6600 XT Challenger D OC 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
ASRock Radeon RX 6600 XT Challenger D OC 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
ASRock Radeon RX 6600 XT Challenger D OC 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
ASRock Radeon RX 6600 XT Challenger D OC 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
0.5 slot/s slimmer design
ASRock Radeon RX 6600 XT Challenger D 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
ASRock Radeon RX 6600 XT Challenger D 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
14.3% faster VRAM clock
ASRock Radeon RX 6600 XT Challenger D OC has a higher VRAM clock than the average graphics card (2000 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
ASRock Radeon RX 6600 XT Challenger D OC has a higher VRAM clock than the average graphics card (2000 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.2000 MHz vs 1750 MHz
13.2% higher user score
ASRock Radeon RX 6600 XT Challenger D OC has a higher user score than the average graphics card (9.06 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.
ASRock Radeon RX 6600 XT Challenger D OC has a higher user score than the average graphics card (9.06 vs 8.000).9.06 vs 8
28.9% lower board power limit
ASRock Radeon RX 6600 XT Challenger D OC has a lower board power limit than the average graphics card (160 W vs 225 W). The average graphics card has a board power limit of 225 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
ASRock Radeon RX 6600 XT Challenger D OC has a lower board power limit than the average graphics card (160 W vs 225 W). The average graphics card has a board power limit of 225 W.160 W vs 225 W
3.5% higher boost clock speed
ASRock Radeon RX 6600 XT Challenger D OC has a higher boost GPU clock than the average graphics card (2,593 MHz vs 2,505 MHz). The average graphics card has a boost GPU clock of 2,505 MHz.
Better FP64 ratio
ASRock Radeon RX 6600 XT Challenger D OC has a better FP64 ratio than the average graphics card (1:16 vs 1:64).
4.2% higher base clock speed
ASRock Radeon RX 6600 XT Challenger D OC has a higher base GPU clock than the average graphics card (2000 MHz vs 1920 MHz). The average graphics card has a base GPU clock of 1920 MHz.
14.3% faster VRAM clock
ASRock Radeon RX 6600 XT Challenger D OC has a higher VRAM clock than the average graphics card (2000 MHz vs 1,750 MHz). The average graphics card runs its VRAM at 1,750 MHz.
8x more Infinity Cache
ASRock Radeon RX 6600 XT Challenger D OC has more Infinity Cache than the average graphics card (32 MB vs 4 MB). The average graphics card has 4 MB Infinity Cache.
23.1% lower PSU requirement
ASRock Radeon RX 6600 XT Challenger D OC 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
ASRock Radeon RX 6600 XT Challenger D OC has a lower TDP than the average graphics card (160 W vs 215 W). The average graphics card has a TDP of 215 W.
28.9% lower board power limit
ASRock Radeon RX 6600 XT Challenger D OC has a lower board power limit than the average graphics card (160 W vs 225 W). The average graphics card has a board power limit of 225 W.
75% lower idle power draw
ASRock Radeon RX 6600 XT Challenger D OC has a lower idle power draw than the average graphics card (3 W vs 12 W). The average graphics card has an idle power draw of 12 W.
84 mm lower card height
ASRock Radeon RX 6600 XT Challenger D OC is shorter than the average graphics card (41 mm vs 125 mm). The average graphics card has a height of 125 mm.
0.5 slot/s slimmer design
ASRock Radeon RX 6600 XT Challenger D 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.

Power & Cooling

Why is ASRock Radeon RX 6600 XT Challenger D OC worse than the average graphics card?

Show more

Hide

No CUDA support
ASRock Radeon RX 6600 XT Challenger D OC does not support CUDA, the average graphics card does.
144 fewer AI cores
ASRock Radeon RX 6600 XT Challenger D OC has fewer AI cores than the average graphics card (0 vs 144). The average graphics card has 144 AI cores.
56 fewer TMUs
ASRock Radeon RX 6600 XT Challenger D OC has fewer TMUs than the average graphics card (128 vs 184). The average graphics card has 184 TMUs.
8 fewer compute units
ASRock Radeon RX 6600 XT Challenger D OC has fewer compute units than the average graphics card (32 vs 40). The average graphics card has 40 compute units.
8 fewer ray tracing cores
ASRock Radeon RX 6600 XT Challenger D OC has fewer ray tracing cores than the average graphics card (32 vs 40). The average graphics card has 40 ray tracing cores.
52.9% lower FP32 performance
ASRock Radeon RX 6600 XT Challenger D OC has a lower FP32 performance than the average graphics card (10.6 TFLOPS vs 22.57 TFLOPS). The average graphics card has FP32 performance of 22.57 TFLOPS.
13.1% lower texture rate
ASRock Radeon RX 6600 XT Challenger D OC has a lower texture rate than the average graphics card (331.4 GTexel/s vs 381.2 GTexel/s). The average graphics card has a texture rate of 381.2 GTexel/s.
27.4% lower PassMark score
ASRock Radeon RX 6600 XT Challenger D OC has a lower PassMark score than the average graphics card (16,448 points vs 22,653 points). The average graphics card has a PassMark score of 22,653 points.
35.3% lower gaming score
ASRock Radeon RX 6600 XT Challenger D OC has a lower gaming score than the average graphics card (9,500 points vs 14,678.5 points). The average graphics card has a gaming score of 14,678.5 points.
40.4% lower ray tracing score
ASRock Radeon RX 6600 XT Challenger D OC has a lower ray tracing score than the average graphics card (5,462 points vs 9,166 points). The average graphics card has a ray tracing score of 9,166 points.
38.5% lower compute score
ASRock Radeon RX 6600 XT Challenger D OC has a lower compute score than the average graphics card (7,422 points vs 12,074 points). The average graphics card has a compute score of 12,074 points.
2,304 fewer FP32 units
ASRock Radeon RX 6600 XT Challenger D OC has fewer FP32 units than the average graphics card (2048 vs 4,352). The average graphics card has 4,352 FP32 units.
128 bit narrower memory bus
ASRock Radeon RX 6600 XT Challenger D OC 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
ASRock Radeon RX 6600 XT Challenger D OC 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
ASRock Radeon RX 6600 XT Challenger D OC 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.
91.7% smaller L2 cache
ASRock Radeon RX 6600 XT Challenger D OC has fewer L2 cache than the average graphics card (2 MB vs 24 MB). The average graphics card has 24 MB L2 cache.
15.8% slower memory speed
ASRock Radeon RX 6600 XT Challenger D OC 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.
No DLSS support
ASRock Radeon RX 6600 XT Challenger D OC does not support DLSS, the average graphics card does.
Fewer PCIe lanes
ASRock Radeon RX 6600 XT Challenger D OC has fewer PCIe lanes than the average graphics card (x8 vs x16). The average graphics card has x16 PCIe lanes.
40% larger process node
ASRock Radeon RX 6600 XT Challenger D OC 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.
Older encoder generation
ASRock Radeon RX 6600 XT Challenger D OC uses an older encoder generation than the average graphics card (3 vs 8). The average graphics card uses encoder generation 8.
2 older
ASRock Radeon RX 6600 XT Challenger D OC was released earlier than the average graphics card (2021 vs 2023).
August 2021
51.5% fewer transistors
ASRock Radeon RX 6600 XT Challenger D OC has fewer transistors than the average graphics card (11,100 million vs 22,900 million). The average graphics card has 22,900 million transistors.
No AV1 encoding
ASRock Radeon RX 6600 XT Challenger D OC does not support AV1 encoding, the average graphics card does.
Older DisplayPort version
ASRock Radeon RX 6600 XT Challenger D OC supports an older DisplayPort version than the average graphics card (1.4 vs 1.4a).
Narrower decode codec support
ASRock Radeon RX 6600 XT Challenger D OC supports narrower hardware decode codec support than the average graphics card (H.264/H.265/AV1/VP9 vs H.264/H.265/AV1/VP9/MPEG-2/VC-1).
2 fewer monitors per output type
ASRock Radeon RX 6600 XT Challenger D OC supports fewer monitors per output type than the average graphics card (1 vs 3). The average graphics card supports 3 monitors per output type.
Narrower encode codec support
ASRock Radeon RX 6600 XT Challenger D OC supports narrower hardware encode codec support than the average graphics card (H.264/H.265/AV1 vs H.264/H.265/AV1/VP9).
1 fewer fans
ASRock Radeon RX 6600 XT Challenger D OC has fewer fans than the average graphics card (2 vs 3).
No dual BIOS
ASRock Radeon RX 6600 XT Challenger D OC does not include dual BIOS, the average graphics card does.
15 °C lower thermal ceiling
ASRock Radeon RX 6600 XT Challenger D OC has a lower thermal ceiling than the average graphics card (110 °C vs 95 °C). The average graphics card has a thermal ceiling of 95 °C.
3.1 dB noisier under load
ASRock Radeon RX 6600 XT Challenger D OC has a higher load noise level than the average graphics card (38.5 dB vs 35.4 dB). The average graphics card has a load noise level of 35.4 dB.
No RGB lighting
ASRock Radeon RX 6600 XT Challenger D OC does not include RGB lighting, the average graphics card does.
128 bit narrower memory bus
ASRock Radeon RX 6600 XT Challenger D OC 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
ASRock Radeon RX 6600 XT Challenger D OC 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
No CUDA support
ASRock Radeon RX 6600 XT Challenger D OC does not support CUDA, the average graphics card does.
What it is: Supports CUDA parallel computing platform
When it matters: When your apps or AI tools specifically depend on the CUDA software stack.
Importance: MEDIUM
ASRock Radeon RX 6600 XT Challenger D OC does not support CUDA, the average graphics card does.
4 GB less VRAM
ASRock Radeon RX 6600 XT Challenger D OC 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
ASRock Radeon RX 6600 XT Challenger D OC 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
1 fewer fans
ASRock Radeon RX 6600 XT Challenger D 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
ASRock Radeon RX 6600 XT Challenger D OC has fewer fans than the average graphics card (2 vs 3).2 vs 3
No DLSS support
ASRock Radeon RX 6600 XT Challenger D 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
ASRock Radeon RX 6600 XT Challenger D OC does not support DLSS, the average graphics card does.
144 fewer AI cores
ASRock Radeon RX 6600 XT Challenger D OC has fewer AI cores than the average graphics card (0 vs 144). The average graphics card has 144 AI cores.
What it is: Number of tensor or AI processing cores
When it matters: When AI features, frame generation, or creator tools use dedicated matrix hardware.
Importance: MEDIUM
ASRock Radeon RX 6600 XT Challenger D OC has fewer AI cores than the average graphics card (0 vs 144). The average graphics card has 144 AI cores.0 vs 144
No dual BIOS
ASRock Radeon RX 6600 XT Challenger D OC does not include dual BIOS, the average graphics card does.
What it is: Includes dual BIOS for redundancy or overclocking profiles
When it matters: When you want a safer recovery path after tweaking fan curves or overclock settings, or you need separate quiet and performance profiles.
Importance: LOW
ASRock Radeon RX 6600 XT Challenger D OC does not include dual BIOS, the average graphics card does.
42.9% lower memory bandwidth
ASRock Radeon RX 6600 XT Challenger D OC 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
ASRock Radeon RX 6600 XT Challenger D OC 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

Platform & Features

Connectivity & Media

Power & Cooling

Graphic comparison of ASRock Radeon RX 6600 XT Challenger D OC and other products in the Graphics cards category

Attribute category

Attribute

No results found

Third-party reviews

United Kingdom

United States

(Reviews last updated: June 2026)

What customers like about ASRock Radeon RX 6600 XT Challenger D OC?

Excellent 1080p performance, often beating the RTX 3060 in standard gaming tests
Effective cooling system that maintains low temperatures (often under 60°C) during gameplay
Quiet operation with a '0dB Silent Cooling' feature where fans stop under low loads
Solid build quality including a stylish metal backplate to prevent PCB bending
Good power efficiency with a relatively low 160W TDP
Easy to overclock using tools like ASRock Tweak 2.0 for a performance boost

What customers dislike about ASRock Radeon RX 6600 XT Challenger D OC?

Weak ray tracing performance compared to Nvidia counterparts
Significant performance drop-off when moving from 1080p to higher resolutions like 1440p or 4K
Uses a PCIe 4.0 x8 interface, which can lead to minor performance losses on older PCIe 3.0 motherboards
8GB of VRAM and a 128-bit memory bus may limit future-proofing for high-end modern titles
Minimalist design with exposed heat pipes may appear 'cheap' to some users
Factory fan curves can be conservative, requiring manual adjustment for optimal thermal management

Expert reviews

wepc.com

06/09/2024

Summary of the review

ASRock Radeon RX 6600 XT Review - WePC

The ASRock Radeon RX 6600 XT Phantom Gaming OC is a highly capable mid-range graphics card that excels at 1080p and 1440p gaming, successfully backing up AMD's performance claims against its competition. Built on the energy-efficient RDNA 2 architecture, this triple-fan factory-overclocked card features a 2607 MHz Boost Clock and stays remarkably cool and quiet under load thanks to its Phantom Gaming 3x cooling system. In raw frame-rate benchmarks, it comfortably outperforms the Nvidia RTX 3060 at both 1080p and 1440p resolutions—showing up to a 24% FPS advantage in Call of Duty: Warzone when paired with an AMD CPU using Smart Access Memory. Surprisingly, it also frequently matches or bests the more expensive Nvidia RTX 3060 Ti at these lower resolutions, making it a highly recommended choice for gamers who prioritize raw frame rates over visual extras. However, the card does come with noticeable drawbacks depending on your specific gaming preferences and hardware setup. Its primary downsides include a significant drop-off in 4K gaming performance, which is heavily bottlenecked by its limited 8GB of VRAM and narrow 128-bit memory bus...

Video reviews

Best alternatives

GIGABYTE Radeon RX 7700 XT Gaming OC

Graphics cards

ASRock Radeon RX 7700 XT Steel Legend OC

Graphics cards

Palit GeForce RTX 5060 Ti Infinity 3 OC 16GB

Graphics cards

ASUS Dual Radeon RX 7700 XT OC Edition

Graphics cards

ASRock Radeon RX 7700 XT Challenger OC

Graphics cards

PNY GeForce RTX 4060 Ti Verto Dual Fan 16GB

Graphics cards

Sapphire Pulse Radeon RX 7700 XT

Graphics cards

Sapphire Nitro Radeon RX 9060 XT 16GB

Graphics cards

XFX Swift Radeon RX 9060 XT OC Gaming Edition 16GB

Graphics cards

ZOTAC Gaming GeForce RTX 5060 Ti Twin Edge 16GB

Graphics cards

GIGABYTE Radeon RX 7800 XT Gaming OC

Graphics cards

GIGABYTE GeForce RTX 5060 Ti Gaming OC 16GB

Graphics cards

Compare ASRock Radeon RX 6600 XT Challenger D OC with other products in the Graphics cards category

Compare