AMD Radeon RX 6600 XT vs AMD Radeon RX 7800 XT

Compare AMD Radeon RX 6600 XT 8 GB vs AMD Radeon RX 7800 XT 16 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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AMD Radeon RX 7800 XT

Price

The cheapest price from our partner retailers

$ 369.99

$ 293.00 significantly less expensive

$ 662.99

Benchmark Score

Overall Score

General gaming and workstation score

5600 points

15475 points

176% significantly better overall score

Flux Core frame rate

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

116 FPS

326 FPS

210 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

85 FPS

216 FPS

130 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

102 FPS

295 FPS

193 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

49 FPS

127 FPS

78 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

9727 points

134% significantly higher 3DMark Graphics score

4154 points

Blender score

Cycles Render (Samples per minute)

1068.60 points

2429.25 points

127% significantly higher Blender score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

82739 points

142590 points

72% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

93271 points

157875 points

69% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1968 MHz

9% slightly higher core clock speed

1800 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

2589 MHz

6% slightly higher boost clock speed

2430 MHz

Memory

Onboard memory size for textures and vertices

8 GiB

16 GiB

100% significantly more memory

Memory Bus Width

Number of parallel lines to the memory chips

128 Bit

256 Bit

100% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

256 GB/s

624 GB/s

143% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

160 W

64% significantly lower TDP

263 W

Pixel Rate

Number of pixels that can be rendered per second

165.7 Gigapixels/s

233 Gigapixels/s

40% slightly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

331.4 Gigatexels/s

583 Gigatexels/s

75% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

10.6 TFLOPS

36.04 TFLOPS

239% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

2048

8192

300% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

128

240

87% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

49% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

90th of 586

17th 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

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 7800 XT comparison

For gaming, the Radeon RX 7800 XT graphics card is better than the Radeon RX 6600 XT in our tests.

In our comparison, 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 boost clock speed is the frequency that the GPU core can reach if the temperature is low enough. The allows for higher performance in certain scenarios.

Furthermore, the spec sheet for both these GPUs show that the Radeon RX 7800 XT has significantly more memory with 16 GiB of memory compared to 8 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the Radeon RX 6600 XT has a significantly lower TDP at 160 W when compared to the Radeon RX 7800 XT at 263 W. TDP (Thermal Design Power) measures total heat output from the chip.

In terms of raw gaming performance in our GPU benchmark, the Radeon RX 7800 XT is better than the Radeon RX 6600 XT.