AMD Radeon RX 6600 XT vs AMD Radeon RX 7900 XTX

Compare AMD Radeon RX 6600 XT 8 GB vs AMD Radeon RX 7900 XTX 24 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Specifications
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AMD Radeon RX 7900 XTX

Price

The cheapest price from our partner retailers

$ 369.99

$ 493.64 significantly less expensive

$ 863.63

Benchmark Score

Overall Score

General gaming and workstation score

5600 points

24895 points

344% significantly better overall score

Flux Core frame rate

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

116 FPS

529 FPS

413 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

85 FPS

351 FPS

265 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

102 FPS

477 FPS

376 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

49 FPS

207 FPS

159 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

9727 points

42% slightly higher 3DMark Graphics score

6837 points

Blender score

Cycles Render (Samples per minute)

1068.60 points

4050.95 points

279% significantly higher Blender score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

82739 points

212685 points

157% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

93271 points

238996 points

156% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1968 MHz

6% slightly higher core clock speed

1855 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

2589 MHz

3% slightly higher boost clock speed

2500 MHz

Memory

Onboard memory size for textures and vertices

8 GiB

24 GiB

200% 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

256 GB/s

960 GB/s

274% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

160 W

121% significantly lower TDP

355 W

Pixel Rate

Number of pixels that can be rendered per second

165.7 Gigapixels/s

480 Gigapixels/s

189% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

331.4 Gigatexels/s

960 Gigatexels/s

189% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

10.6 TFLOPS

61.42 TFLOPS

479% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

2048

6144

200% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

128

384

200% 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

90th of 586

3rd 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 November

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 XT vs Radeon RX 7900 XTX specs and performance

According to the hardwareDB Benchmark, the Radeon RX 7900 XTX GPU is faster than the Radeon RX 6600 XT in gaming.

The Radeon RX 6600 XT has a slightly higher core clock speed. This is the frequency at which the graphics core is running at. While not necessarily an indicator of overall performance, this metric can be useful when comparing two GPUs based on the same architecture. In addition, the Radeon RX 6600 XT also has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

As stated by the manufacturer, the Radeon RX 7900 XTX has significantly more memory with 24 GiB of memory compared to 8 GiB. If you're planning at playing games at high resolutions with high-quality textures, you will need a lot of memory.

In addition, the Radeon RX 6600 XT has a significantly lower TDP at 160 W when compared to the Radeon RX 7900 XTX at 355 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 terms of raw gaming performance in our GPU benchmark, the Radeon RX 7900 XTX is better than the Radeon RX 6600 XT.