AMD Radeon R5 340 vs AMD Radeon RX 640

Compare AMD Radeon R5 340 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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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

241 points

556 points

130% significantly better overall score

Flux Core frame rate

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

6 FPS

14 FPS

8 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

3 FPS

9 FPS

6 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

5 FPS

13 FPS

8 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

2 FPS

4 FPS

2 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

5498 points

15883 points

188% significantly higher Geekbench 5 (OpenCL) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

5434 points

14348 points

164% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

4578 points

16397 points

258% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

730 MHz

1082 MHz

48% significantly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

780 MHz

1287 MHz

64% significantly higher boost clock speed

Memory Bus Width

Number of parallel lines to the memory chips

64 Bit

Identical

64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

36.8 GB/s

56 GB/s

52% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

65 W

50 W

30% slightly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

6.24 Gigapixels/s

20.6 Gigapixels/s

230% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

18.72 Gigatexels/s

51.48 Gigatexels/s

175% significantly higher texture rate

Texture Mapping Units

Number of processors dedicated to applying textures

66% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

100% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

405th of 586

318th of 586

Family

The product line

Radeon 600 Series

Release date

The official date of release of this chip

2015 May

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 R5 340 vs Radeon RX 640 specs and performance

In our benchmarks, the Radeon RX 640 beats the Radeon R5 340 in gaming performance.

Our database shows that the Radeon RX 640 has a significantly higher core clock speed. The core clock speed (or base speed) is the frequency at which the GPU core runs. This metric makes sense when comparing GPUs of a similar architecture or generation. In addition, the Radeon RX 640 also has a significantly higher boost clock speed. This is a frequency that can be reached if the GPU is cooled sufficiently and has enough power.

In addition, the Radeon RX 640 has a slightly lower TDP at 50 W when compared to the Radeon R5 340 at 65 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 640 over the Radeon R5 340.