AMD Radeon RX 640 vs NVIDIA GeForce GTX 750

Compare AMD Radeon RX 640 4 GB vs NVIDIA GeForce GTX 750 2 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

Benchmark Score
Other Benchmarks
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

Identical

9 FPS

City frame rate

Procedurally generated city scene with voxel rendering

13 FPS

4 FPS significantly higher City frame rate

9 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

4 FPS

8 FPS

4 FPS significantly higher Clouds frame rate

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

15883 points

49% significantly higher Geekbench 5 (OpenCL) score

10644 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

15859 points

58% significantly higher Geekbench 5 (Vulkan) score

10015 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

14348 points

42% slightly higher Geekbench 6 (OpenCL) score

10095 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

16397 points

83% significantly higher Geekbench 6 (Vulkan) score

8958 points

Specifications

Core Clock Speed

Nominal chip frequency

1082 MHz

6% slightly higher core clock speed

1020 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1287 MHz

18% slightly higher boost clock speed

1085 MHz

Memory

Onboard memory size for textures and vertices

4 GiB

100% significantly more memory

2 GiB

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

80.19 GB/s

43% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

50 W

10% slightly lower TDP

55 W

Pixel Rate

Number of pixels that can be rendered per second

20.6 Gigapixels/s

18% slightly higher pixel rate

17.36 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

51.48 Gigatexels/s

48% significantly higher texture rate

34.72 Gigatexels/s

Texture Mapping Units

Number of processors dedicated to applying textures

25% slightly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

Identical

Other details

Rank

Ranking in the hardwareDB database

318th of 586

315th of 586

Family

The product line

Radeon 600 Series

Release date

The official date of release of this chip

2014 February

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

4.6

4.5

Radeon RX 640 vs GeForce GTX 750 comparison

According to the hardwareDB Benchmark, the GeForce GTX 750 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 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, the Radeon RX 640 has significantly more memory with 4 GiB of memory compared to 2 GiB. Lots of memory is good when playing at high resolutions or with many monitors.

In addition, the Radeon RX 640 has a slightly lower TDP at 50 W when compared to the GeForce GTX 750 at 55 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 750 is better than the Radeon RX 640.