AMD Radeon RX 580 vs NVIDIA GeForce GTX 645

Compare AMD Radeon RX 580 8 GB vs NVIDIA GeForce GTX 645 1 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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NVIDIA GeForce GTX 645

Price

The cheapest price from our partner retailers

$ 139.19

$ 108.02

$ 31.17 slightly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

2281 points

668% significantly better overall score

297 points

Flux Core frame rate

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

47 FPS

40 FPS significantly higher Flux Core frame rate

8 FPS

Electron frame rate

Randomly generated noise sphere test

34 FPS

30 FPS significantly higher Electron frame rate

4 FPS

City frame rate

Procedurally generated city scene with voxel rendering

48 FPS

44 FPS significantly higher City frame rate

4 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

18 FPS

14 FPS significantly higher Clouds frame rate

4 FPS

Free GPU Benchmark

Want to compare your graphics card against the Radeon RX 580 and the GeForce GTX 645? Download our free and quick PC Performance Test.

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

390.99 points

853% significantly higher Blender score

41.03 points

Geekbench 5 (Metal) score

Metal compute benchmark

44601 points

1542% significantly higher Geekbench 5 (Metal) score

2716 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

49182 points

842% significantly higher Geekbench 5 (OpenCL) score

5217 points

Geekbench 6 (Metal) score

Metal compute benchmark

52261 points

826% significantly higher Geekbench 6 (Metal) score

5638 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

45779 points

768% significantly higher Geekbench 6 (OpenCL) score

5274 points

Specifications

Memory

Onboard memory size for textures and vertices

8 GiB

700% significantly more memory

1 GiB

TDP

Thermal Design Power: Measure of heat generated by the GPU

185 W

64 W

189% significantly lower TDP

Other details

Rank

Ranking in the hardwareDB database

191st of 586

381st of 586

Family

The product line

Radeon RX 500 Series

Release date

The official date of release of this chip

2017 April

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

4.5

Radeon RX 580 vs GeForce GTX 645 specs and performance

For gaming, the Radeon RX 580 graphics card is better than the GeForce GTX 645 in our tests.

Furthermore, the spec sheet for both these GPUs show that the Radeon RX 580 has significantly more memory with 8 GiB of memory compared to 1 GiB. Lots of memory is good when playing at high resolutions or with many monitors.

In addition, the GeForce GTX 645 has a significantly lower TDP at 64 W when compared to the Radeon RX 580 at 185 W. TDP (Thermal Design Power) measures total heat output from the chip.

According to the results of the hardwareDB benchmark utility, the Radeon RX 580 is faster than the GeForce GTX 645.