NVIDIA GeForce GTX 980 vs AMD Radeon RX 640

Compare NVIDIA GeForce GTX 980 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

$ 879.85

$ 199.99

$ 679.86 significantly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

2494 points

348% significantly better overall score

556 points

Flux Core frame rate

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

52 FPS

39 FPS significantly higher Flux Core frame rate

14 FPS

Electron frame rate

Randomly generated noise sphere test

41 FPS

31 FPS significantly higher Electron frame rate

9 FPS

City frame rate

Procedurally generated city scene with voxel rendering

36 FPS

23 FPS significantly higher City frame rate

13 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

33 FPS

29 FPS significantly higher Clouds frame rate

4 FPS

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

33463 points

110% significantly higher Geekbench 5 (OpenCL) score

15883 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

41306 points

160% significantly higher Geekbench 5 (Vulkan) score

15859 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

34611 points

141% significantly higher Geekbench 6 (OpenCL) score

14348 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

38178 points

132% significantly higher Geekbench 6 (Vulkan) score

16397 points

Specifications

Core Clock Speed

Nominal chip frequency

1126 MHz

4% slightly higher core clock speed

1082 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1216 MHz

1287 MHz

5% 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

165 W

50 W

230% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

77.82 Gigapixels/s

277% significantly higher pixel rate

20.6 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

155.6 Gigatexels/s

202% significantly higher texture rate

51.48 Gigatexels/s

Texture Mapping Units

Number of processors dedicated to applying textures

128

220% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

300% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

177th 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 980 vs Radeon RX 640 comparison

For gaming, the GeForce GTX 980 graphics card is better than the Radeon RX 640 in our tests.

Our database shows that the GeForce GTX 980 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. 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.

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 GeForce GTX 980 at 165 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In terms of raw gaming performance in our GPU benchmark, the GeForce GTX 980 is better than the Radeon RX 640.