NVIDIA GeForce GTX 1080 vs AMD Radeon RX 640

Compare NVIDIA GeForce GTX 1080 8 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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AMD Radeon RX 640

Price

The cheapest price from our partner retailers

$ 365.00

$ 199.99

$ 165.01 significantly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

4905 points

782% significantly better overall score

556 points

Flux Core frame rate

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

94 FPS

80 FPS significantly higher Flux Core frame rate

14 FPS

Electron frame rate

Randomly generated noise sphere test

79 FPS

69 FPS significantly higher Electron frame rate

9 FPS

City frame rate

Procedurally generated city scene with voxel rendering

62 FPS

50 FPS significantly higher City frame rate

13 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

64 FPS

60 FPS significantly higher Clouds frame rate

4 FPS

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

54640 points

244% significantly higher Geekbench 5 (OpenCL) score

15883 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

66552 points

319% significantly higher Geekbench 5 (Vulkan) score

15859 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

60120 points

319% significantly higher Geekbench 6 (OpenCL) score

14348 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

65170 points

297% significantly higher Geekbench 6 (Vulkan) score

16397 points

Specifications

Core Clock Speed

Nominal chip frequency

1607 MHz

48% significantly higher core clock speed

1082 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1733 MHz

34% slightly higher boost clock speed

1287 MHz

Memory

Onboard memory size for textures and vertices

8 GiB

100% significantly more memory

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

320.3 GB/s

471% significantly higher memory bandwidth

56 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

180 W

50 W

259% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

110.9 Gigapixels/s

438% significantly higher pixel rate

20.6 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

277.3 Gigatexels/s

438% significantly higher texture rate

51.48 Gigatexels/s

Texture Mapping Units

Number of processors dedicated to applying textures

160

300% 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

104th of 586

318th of 586

Family

The product line

Radeon 600 Series

Release date

The official date of release of this chip

2016 May

Memory Type

The type of memory used by this chip

GDDR5X

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.5

4.6

GeForce GTX 1080 vs Radeon RX 640 specs and performance

For gaming, the GeForce GTX 1080 graphics card is better than the Radeon RX 640 in our tests.

Our database shows that the GeForce GTX 1080 has a significantly 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 GeForce GTX 1080 also has a slightly higher boost clock speed. This is a frequency that can be reached if the GPU is cooled sufficiently and has enough power.

As stated by the manufacturer, the GeForce GTX 1080 has significantly more memory with 8 GiB of memory compared to 4 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the Radeon RX 640 has a significantly lower TDP at 50 W when compared to the GeForce GTX 1080 at 180 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 1080 is faster than the Radeon RX 640.