AMD Radeon RX 640 vs NVIDIA GeForce GTX 780

Compare AMD Radeon RX 640 4 GB vs NVIDIA GeForce GTX 780 6 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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NVIDIA GeForce GTX 780

Price

The cheapest price from our partner retailers

$ 199.99

$ 208.97 significantly less expensive

$ 408.96

Benchmark Score

Overall Score

General gaming and workstation score

556 points

1799 points

223% significantly better overall score

Flux Core frame rate

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

14 FPS

37 FPS

23 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

9 FPS

26 FPS

16 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

13 FPS

26 FPS

14 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

4 FPS

22 FPS

18 FPS significantly higher Clouds frame rate

Free GPU Benchmark

Want to compare your graphics card against the Radeon RX 640 and the GeForce GTX 780? Download our free and quick PC Performance Test.

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

15883 points

21004 points

32% slightly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

15859 points

21940 points

38% slightly higher Geekbench 5 (Vulkan) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

14348 points

23273 points

62% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

16397 points

24865 points

51% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1082 MHz

25% slightly higher core clock speed

863 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1287 MHz

42% slightly higher boost clock speed

902 MHz

Memory

Onboard memory size for textures and vertices

4 GiB

6 GiB

49% significantly more memory

Memory Bus Width

Number of parallel lines to the memory chips

64 Bit

384 Bit

499% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

56 GB/s

288.4 GB/s

414% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

50 W

400% significantly lower TDP

250 W

Pixel Rate

Number of pixels that can be rendered per second

20.6 Gigapixels/s

43.3 Gigapixels/s

110% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

51.48 Gigatexels/s

173.2 Gigatexels/s

236% significantly higher texture rate

Texture Mapping Units

Number of processors dedicated to applying textures

192

380% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

200% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

318th of 586

221st of 586

Family

The product line

Radeon 600 Series

Release date

The official date of release of this chip

2013 May

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

11.0

OpenGL Support

Maximum version of OpenGL supported

4.6

4.5

Radeon RX 640 vs GeForce GTX 780 specs and performance

For gaming, the GeForce GTX 780 graphics card is better than the Radeon RX 640 in our tests.

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.

As stated by the manufacturer, the GeForce GTX 780 has significantly more memory with 6 GiB of memory compared to 4 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 780 at 250 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 780 is better than the Radeon RX 640.