NVIDIA GeForce GTX 950 vs AMD Radeon RX 640

Compare NVIDIA GeForce GTX 950 2 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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Other Benchmarks
Specifications
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GPU Comparison

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AMD Radeon RX 640

Price

The cheapest price from our partner retailers

$ 255.00

$ 199.99

$ 55.01 slightly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

1038 points

86% significantly better overall score

556 points

Flux Core frame rate

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

22 FPS

9 FPS significantly higher Flux Core frame rate

14 FPS

Electron frame rate

Randomly generated noise sphere test

16 FPS

7 FPS significantly higher Electron frame rate

9 FPS

City frame rate

Procedurally generated city scene with voxel rendering

15 FPS

2 FPS slightly higher City frame rate

13 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

13 FPS

9 FPS significantly higher Clouds frame rate

4 FPS

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

18233 points

14% slightly higher Geekbench 5 (OpenCL) score

15883 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

18345 points

15% slightly higher Geekbench 5 (Vulkan) score

15859 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

16999 points

18% slightly higher Geekbench 6 (OpenCL) score

14348 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

16578 points

1% slightly higher Geekbench 6 (Vulkan) score

16397 points

Specifications

Core Clock Speed

Nominal chip frequency

1024 MHz

1082 MHz

5% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1188 MHz

1287 MHz

8% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

2 GiB

4 GiB

100% significantly more memory

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

105.8 GB/s

88% significantly higher memory bandwidth

56 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

90 W

50 W

79% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

38.02 Gigapixels/s

84% significantly higher pixel rate

20.6 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

57.02 Gigatexels/s

10% slightly higher texture rate

51.48 Gigatexels/s

Texture Mapping Units

Number of processors dedicated to applying textures

20% slightly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

100% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

261st of 586

318th of 586

Family

The product line

Radeon 600 Series

Release date

The official date of release of this chip

2015 August

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 950 vs Radeon RX 640 benchmarks

According to the hardwareDB Benchmark, the GeForce GTX 950 GPU is faster than the Radeon RX 640 in gaming.

The Radeon RX 640 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. 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.

Furthermore, the spec sheet for both these GPUs show that the Radeon RX 640 has significantly more memory with 4 GiB of memory compared to 2 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 950 at 90 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 terms of raw gaming performance in our GPU benchmark, the GeForce GTX 950 is better than the Radeon RX 640.