AMD Radeon RX 6900 XT vs AMD Radeon RX 580 2048SP

Compare AMD Radeon RX 6900 XT 16 GB vs AMD Radeon RX 580 2048SP, specs and GPU benchmark score. Which is the better graphics card for the money?

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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

14121 points

669% significantly better overall score

1836 points

Flux Core frame rate

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

286 FPS

249 FPS significantly higher Flux Core frame rate

37 FPS

Electron frame rate

Randomly generated noise sphere test

208 FPS

180 FPS significantly higher Electron frame rate

27 FPS

City frame rate

Procedurally generated city scene with voxel rendering

257 FPS

217 FPS significantly higher City frame rate

40 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

122 FPS

108 FPS significantly higher Clouds frame rate

14 FPS

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

4065 points

4% slightly higher 3DMark Graphics score

3877 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

170008 points

318% significantly higher Geekbench 5 (OpenCL) score

40609 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

114610 points

203% significantly higher Geekbench 5 (Vulkan) score

37797 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

167644 points

387% significantly higher Geekbench 6 (OpenCL) score

34371 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

171121 points

274% significantly higher Geekbench 6 (Vulkan) score

45743 points

Specifications

Core Clock Speed

Nominal chip frequency

1825 MHz

56% significantly higher core clock speed

1168 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

2250 MHz

75% significantly higher boost clock speed

1284 MHz

Memory Bus Width

Number of parallel lines to the memory chips

256 Bit

Identical

256 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

512 GB/s

128% significantly higher memory bandwidth

224 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

300 W

150 W

100% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

288 Gigapixels/s

600% significantly higher pixel rate

41.09 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

720 Gigatexels/s

337% significantly higher texture rate

164.4 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

23.04 TFLOPS

338% significantly better floating point performance

5.26 TFLOPS

Shading Units

Number of processors dedicated to shader processing

5120

150% significantly more shading units

2048

Texture Mapping Units

Number of processors dedicated to applying textures

320

150% significantly more texture mapping units

128

Render Output Processors

Number of processors dedicated to final pixel rendering

128

300% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

24th of 586

218th of 586

Family

The product line

Radeon RX 6000 Series

Release date

The official date of release of this chip

2020 August

2018 October

Memory Type

The type of memory used by this chip

GDDR6

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

Radeon RX 6900 XT vs Radeon RX 580 2048SP benchmarks

For gaming, the Radeon RX 6900 XT graphics card is better than the Radeon RX 580 2048SP in our tests.

The Radeon RX 6900 XT has a significantly 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. In addition, the Radeon RX 6900 XT also has a significantly 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.

In addition, the Radeon RX 580 2048SP has a significantly lower TDP at 150 W when compared to the Radeon RX 6900 XT at 300 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 6900 XT over the Radeon RX 580 2048SP.