AMD Radeon RX 640 vs AMD Radeon HD 6870

Compare AMD Radeon RX 640 4 GB vs AMD Radeon HD 6870 1 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

5% slightly better overall score

528 points

Flux Core frame rate

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

14 FPS

1 FPS slightly higher Flux Core frame rate

13 FPS

Electron frame rate

Randomly generated noise sphere test

9 FPS

11 FPS

1 FPS slightly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

13 FPS

4 FPS significantly higher City frame rate

8 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

4 FPS

Identical

4 FPS

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

15883 points

220% significantly higher Geekbench 5 (OpenCL) score

4950 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

14348 points

189% significantly higher Geekbench 6 (OpenCL) score

4950 points

Specifications

Boost Clock Speed

Higher turbo frequency when power conditions are met

1287 MHz

43% significantly higher boost clock speed

900 MHz

Memory

Onboard memory size for textures and vertices

4 GiB

300% significantly more memory

1 GiB

Other details

Rank

Ranking in the hardwareDB database

318th of 586

322nd of 586

Family

The product line

Radeon 600 Series

Radeon HD 6000 Series

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

Radeon RX 640 vs Radeon HD 6870 benchmarks

In our benchmarks, the Radeon RX 640 beats the Radeon HD 6870 in gaming performance.

Furthermore, the spec sheet for both these GPUs show that the Radeon RX 640 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 conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 640 over the Radeon HD 6870.