AMD Radeon RX 560 vs AMD Radeon RX 640

Compare AMD Radeon RX 560 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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AMD Radeon RX 640

Price

The cheapest price from our partner retailers

$ 149.39

$ 50.60 significantly less expensive

$ 199.99

Benchmark Score

Overall Score

General gaming and workstation score

825 points

48% significantly better overall score

556 points

Flux Core frame rate

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

18 FPS

5 FPS significantly higher Flux Core frame rate

14 FPS

Electron frame rate

Randomly generated noise sphere test

12 FPS

3 FPS significantly higher Electron frame rate

9 FPS

City frame rate

Procedurally generated city scene with voxel rendering

18 FPS

5 FPS significantly higher City frame rate

13 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

6 FPS

2 FPS significantly higher Clouds frame rate

4 FPS

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

21086 points

32% slightly higher Geekbench 5 (OpenCL) score

15883 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

19493 points

22% slightly higher Geekbench 5 (Vulkan) score

15859 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

20226 points

40% slightly higher Geekbench 6 (OpenCL) score

14348 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

23100 points

40% 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

80 W

50 W

60% 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

275th of 586

318th of 586

Family

The product line

Radeon RX 500 Series

Radeon 600 Series

Release date

The official date of release of this chip

2017 April

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

4.5

4.6

Radeon RX 560 vs Radeon RX 640 comparison

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

Our database shows that the Radeon RX 560 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 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.

As stated by the manufacturer, they both have the same amount of memory at 4 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the Radeon RX 640 has a significantly lower TDP at 50 W when compared to the Radeon RX 560 at 80 W. TDP (Thermal Design Power) measures total heat output from the chip.

According to the results of the hardwareDB benchmark utility, the Radeon RX 560 is faster than the Radeon RX 640.