AMD Radeon RX 640 vs NVIDIA GeForce GTX 950M

Compare AMD Radeon RX 640 4 GB vs NVIDIA GeForce GTX 950M, specs and GPU benchmark score. Which is the better graphics card for the money?

Benchmark Score
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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

556 points

575 points

3% slightly better overall score

Flux Core frame rate

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

14 FPS

2 FPS slightly higher Flux Core frame rate

11 FPS

Electron frame rate

Randomly generated noise sphere test

9 FPS

10 FPS

1 FPS slightly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

13 FPS

3 FPS significantly higher City frame rate

10 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

4 FPS

9 FPS

5 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

15883 points

56% significantly higher Geekbench 5 (OpenCL) score

10170 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

15859 points

74% significantly higher Geekbench 5 (Vulkan) score

9069 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

14348 points

46% significantly higher Geekbench 6 (OpenCL) score

9820 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

16397 points

85% significantly higher Geekbench 6 (Vulkan) score

8825 points

Specifications

Core Clock Speed

Nominal chip frequency

1082 MHz

8% slightly higher core clock speed

993 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1287 MHz

14% slightly higher boost clock speed

1124 MHz

Memory Bus Width

Number of parallel lines to the memory chips

64 Bit

128 Bit

100% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

56 GB/s

94% significantly higher memory bandwidth

28.8 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

50 W

49% significantly lower TDP

75 W

Pixel Rate

Number of pixels that can be rendered per second

20.6 Gigapixels/s

14% slightly higher pixel rate

17.98 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

51.48 Gigatexels/s

14% slightly higher texture rate

44.96 Gigatexels/s

Texture Mapping Units

Number of processors dedicated to applying textures

Identical

Render Output Processors

Number of processors dedicated to final pixel rendering

Identical

Other details

Rank

Ranking in the hardwareDB database

318th of 586

316th of 586

Family

The product line

Radeon 600 Series

Release date

The official date of release of this chip

2015 March

Memory Type

The type of memory used by this chip

GDDR5

DDR3

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

Radeon RX 640 vs GeForce GTX 950M benchmarks

In our benchmarks, the GeForce GTX 950M beats the Radeon RX 640 in gaming performance.

Our database shows that 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.

In addition, the Radeon RX 640 has a significantly lower TDP at 50 W when compared to the GeForce GTX 950M at 75 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.

According to the results of the hardwareDB benchmark utility, the GeForce GTX 950M is faster than the Radeon RX 640.