AMD Radeon RX 6600 vs AMD Radeon RX 7900 XT

Compare AMD Radeon RX 6600 8 GB vs AMD Radeon RX 7900 XT 20 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

Benchmark Score
Gaming
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Specifications
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AMD Radeon RX 7900 XT

Price

The cheapest price from our partner retailers

$ 200.88

$ 479.11 significantly less expensive

$ 679.99

Benchmark Score

Overall Score

General gaming and workstation score

4302 points

19220 points

346% significantly better overall score

Flux Core frame rate

Volumetric ray casting test, a computationally expensive method of rendering high-quality scenes

86 FPS

393 FPS

307 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

65 FPS

273 FPS

209 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

78 FPS

362 FPS

284 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

37 FPS

158 FPS

122 FPS significantly higher Clouds frame rate

Free GPU Benchmark

Want to compare your graphics card against the Radeon RX 6600 and the Radeon RX 7900 XT? Download our free and quick PC Performance Test.

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Gaming Benchmarks

Call of Duty FPS

Ultra settings at 1080p

99 FPS

190 FPS

91 FPS significantly higher Call of Duty FPS

Cyberpunk 2077 FPS

Ultra settings at 1080p

50 FPS

134 FPS

84 FPS significantly higher Cyberpunk 2077 FPS

Fortnite FPS

Ultra settings at 1080p

86 FPS

190 FPS

104 FPS significantly higher Fortnite FPS

Forza Horizon 5 FPS

Ultra settings at 1080p

111 FPS

244 FPS

133 FPS significantly higher Forza Horizon 5 FPS

Red Dead Redemption 2 FPS

Ultra settings at 1080p

70 FPS

189 FPS

119 FPS significantly higher Red Dead Redemption 2 FPS

Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

8131 points

44% significantly higher 3DMark Graphics score

5616 points

Blender score

Cycles Render (Samples per minute)

969.87 points

3540.90 points

265% significantly higher Blender score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

73158 points

187759 points

156% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

86589 points

213258 points

146% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1626 MHz

1800 MHz

10% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

2491 MHz

3% slightly higher boost clock speed

2400 MHz

Memory

Onboard memory size for textures and vertices

8 GiB

20 GiB

150% significantly more memory

Memory Bus Width

Number of parallel lines to the memory chips

128 Bit

384 Bit

200% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

224 GB/s

800 GB/s

257% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

132 W

138% significantly lower TDP

315 W

Pixel Rate

Number of pixels that can be rendered per second

159.4 Gigapixels/s

460 Gigapixels/s

188% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

279 Gigatexels/s

810 Gigatexels/s

190% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

8.93 TFLOPS

54.07 TFLOPS

505% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

1792

12288

585% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

112

768

585% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

192

200% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

118th of 586

10th of 586

Family

The product line

Radeon RX 6000 Series

Radeon RX 7000 Series

Release date

The official date of release of this chip

2021 October

2022 December

Memory Type

The type of memory used by this chip

GDDR6

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

Radeon RX 6600 vs Radeon RX 7900 XT benchmarks

In our benchmarks, the Radeon RX 7900 XT beats the Radeon RX 6600 in gaming performance.

Our database shows that the Radeon RX 7900 XT has a slightly higher core clock speed. The core clock speed (or base speed) is the frequency at which the GPU core runs. This metric makes sense when comparing GPUs of a similar architecture or generation. Despite this, the Radeon RX 6600 has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

Next up, in terms of GPU memory, the Radeon RX 7900 XT has significantly more memory with 20 GiB of memory compared to 8 GiB. Lots of memory is good when playing at high resolutions or with many monitors.

In addition, the Radeon RX 6600 has a significantly lower TDP at 132 W when compared to the Radeon RX 7900 XT at 315 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 7900 XT over the Radeon RX 6600.