AMD Radeon RX 550 vs NVIDIA GeForce GTX 645

Compare AMD Radeon RX 550 4 GB vs NVIDIA GeForce GTX 645 1 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

Benchmark Score
Other Benchmarks
Specifications
Comments (0)
Popular Comparisons

GPU Comparison

Quickly search and compare graphics cards

NVIDIA GeForce GTX 645

Price

The cheapest price from our partner retailers

$ 225.00

$ 108.02

$ 116.98 significantly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

621 points

109% significantly better overall score

297 points

Flux Core frame rate

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

15 FPS

8 FPS significantly higher Flux Core frame rate

8 FPS

Electron frame rate

Randomly generated noise sphere test

14 FPS

10 FPS significantly higher Electron frame rate

4 FPS

City frame rate

Procedurally generated city scene with voxel rendering

16 FPS

13 FPS significantly higher City frame rate

4 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

10 FPS

6 FPS significantly higher Clouds frame rate

4 FPS

Free GPU Benchmark

Want to compare your graphics card against the Radeon RX 550 and the GeForce GTX 645? Download our free and quick PC Performance Test.

Download GPU Benchmark

Other Benchmarks

Geekbench 5 (Metal) score

Metal compute benchmark

18838 points

593% significantly higher Geekbench 5 (Metal) score

2716 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

14002 points

168% significantly higher Geekbench 5 (OpenCL) score

5217 points

Geekbench 6 (Metal) score

Metal compute benchmark

19855 points

252% significantly higher Geekbench 6 (Metal) score

5638 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

12342 points

134% significantly higher Geekbench 6 (OpenCL) score

5274 points

Specifications

Memory

Onboard memory size for textures and vertices

4 GiB

300% significantly more memory

1 GiB

TDP

Thermal Design Power: Measure of heat generated by the GPU

50 W

28% slightly lower TDP

64 W

Other details

Rank

Ranking in the hardwareDB database

308th of 586

377th 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 550 vs GeForce GTX 645 comparison

In our benchmarks, the Radeon RX 550 beats the GeForce GTX 645 in gaming performance.

As stated by the manufacturer, the Radeon RX 550 has significantly more memory with 4 GiB of memory compared to 1 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the Radeon RX 550 has a slightly lower TDP at 50 W when compared to the GeForce GTX 645 at 64 W. TDP (Thermal Design Power) measures total heat output from the chip.

In terms of raw gaming performance in our GPU benchmark, the Radeon RX 550 is better than the GeForce GTX 645.