AMD Radeon RX 560X vs AMD Radeon RX 640

Compare AMD Radeon RX 560X 4 GB vs AMD Radeon RX 640 4 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

Benchmark Score
Other Benchmarks
Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

482 points

556 points

15% slightly better overall score

Flux Core frame rate

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

13 FPS

14 FPS

0 FPS slightly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

8 FPS

9 FPS

1 FPS slightly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

11 FPS

13 FPS

1 FPS slightly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

4 FPS

Identical

4 FPS

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

23094 points

45% significantly higher Geekbench 5 (OpenCL) score

15883 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

19900 points

25% slightly higher Geekbench 5 (Vulkan) score

15859 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

20500 points

42% significantly higher Geekbench 6 (OpenCL) score

14348 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

20126 points

22% slightly higher Geekbench 6 (Vulkan) score

16397 points

Specifications

Core Clock Speed

Nominal chip frequency

1175 MHz

8% slightly higher core clock speed

1082 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1275 MHz

1287 MHz

0.94% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

4 GiB

Identical

4 GiB

Memory Bus Width

Number of parallel lines to the memory chips

128 Bit

100% significantly larger memory bus width

64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

112 GB/s

100% significantly higher memory bandwidth

56 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

75 W

50 W

49% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

20.4 Gigapixels/s

20.6 Gigapixels/s

0.98% slightly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

81.6 Gigatexels/s

58% significantly higher texture rate

51.48 Gigatexels/s

Texture Mapping Units

Number of processors dedicated to applying textures

60% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

Identical

Other details

Rank

Ranking in the hardwareDB database

332nd of 586

318th of 586

Family

The product line

Radeon RX 500X Series

Radeon 600 Series

Release date

The official date of release of this chip

2018 March

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

Radeon RX 560X vs Radeon RX 640 comparison

According to the hardwareDB Benchmark, the Radeon RX 640 GPU is faster than the Radeon RX 560X in gaming.

Our database shows that the Radeon RX 560X 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 640 has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

Furthermore, the spec sheet for both these GPUs show that they both have the same amount of memory at 4 GiB. Lots of memory is good when playing at high resolutions or with many monitors.

In addition, the Radeon RX 640 has a significantly lower TDP at 50 W when compared to the Radeon RX 560X at 75 W. TDP (Thermal Design Power) measures total heat output from the chip.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 640 over the Radeon RX 560X.