NVIDIA GeForce GTX 970 vs AMD Radeon RX 640

Compare NVIDIA GeForce GTX 970 4 GB vs AMD Radeon RX 640 4 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Specifications
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GPU Comparison

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AMD Radeon RX 640

Price

The cheapest price from our partner retailers

$ 369.00

$ 199.99

$ 169.01 significantly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

2262 points

306% significantly better overall score

556 points

Flux Core frame rate

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

47 FPS

33 FPS significantly higher Flux Core frame rate

14 FPS

Electron frame rate

Randomly generated noise sphere test

35 FPS

26 FPS significantly higher Electron frame rate

9 FPS

City frame rate

Procedurally generated city scene with voxel rendering

31 FPS

19 FPS significantly higher City frame rate

13 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

28 FPS

24 FPS significantly higher Clouds frame rate

4 FPS

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

29153 points

83% significantly higher Geekbench 5 (OpenCL) score

15883 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

34107 points

115% significantly higher Geekbench 5 (Vulkan) score

15859 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

29277 points

104% significantly higher Geekbench 6 (OpenCL) score

14348 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

32348 points

97% significantly higher Geekbench 6 (Vulkan) score

16397 points

Specifications

Core Clock Speed

Nominal chip frequency

1050 MHz

1082 MHz

3% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1178 MHz

1287 MHz

9% 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

256 Bit

300% significantly larger memory bus width

64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

224.4 GB/s

300% significantly higher memory bandwidth

56 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

145 W

50 W

190% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

65.97 Gigapixels/s

220% significantly higher pixel rate

20.6 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

122.5 Gigatexels/s

137% significantly higher texture rate

51.48 Gigatexels/s

Texture Mapping Units

Number of processors dedicated to applying textures

104

160% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

250% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

193rd of 586

318th of 586

Family

The product line

Radeon 600 Series

Release date

The official date of release of this chip

2014 September

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

GeForce GTX 970 vs Radeon RX 640 benchmarks

In our benchmarks, the GeForce GTX 970 beats the Radeon RX 640 in gaming performance.

In our comparison, the Radeon RX 640 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 640 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, they both have the same amount of memory at 4 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 640 has a significantly lower TDP at 50 W when compared to the GeForce GTX 970 at 145 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 conclusion, all specs and GPU benchmarks considered, will recommend the GeForce GTX 970 over the Radeon RX 640.