AMD Radeon R7 450 vs AMD Radeon RX 640

Compare AMD Radeon R7 450 2 GB vs AMD Radeon RX 640 4 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

Benchmark Score
Other Benchmarks
Specifications
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AMD Radeon RX 640

Price

The cheapest price from our partner retailers

$ 149.99

$ 50.00 significantly less expensive

$ 199.99

Benchmark Score

Overall Score

General gaming and workstation score

297 points

556 points

87% significantly better overall score

Flux Core frame rate

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

8 FPS

14 FPS

5 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

4 FPS

9 FPS

5 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

6 FPS

13 FPS

7 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

10702 points

15883 points

48% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

9779 points

15859 points

62% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

10058 points

14348 points

42% slightly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

8478 points

16397 points

93% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1050 MHz

1082 MHz

3% slightly higher core clock speed

Memory

Onboard memory size for textures and vertices

2 GiB

4 GiB

100% significantly more memory

Memory Bus Width

Number of parallel lines to the memory chips

128 Bit

100% significantly larger memory bus width

64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

72 GB/s

28% slightly higher memory bandwidth

56 GB/s

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

14.8 Gigapixels/s

20.6 Gigapixels/s

39% slightly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

29.6 Gigatexels/s

51.48 Gigatexels/s

73% significantly higher texture rate

Texture Mapping Units

Number of processors dedicated to applying textures

25% slightly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

Identical

Other details

Rank

Ranking in the hardwareDB database

377th of 586

318th of 586

Family

The product line

Radeon 600 Series

Release date

The official date of release of this chip

2016 June

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

4.3

4.6

Radeon R7 450 vs Radeon RX 640 benchmarks

According to the hardwareDB Benchmark, the Radeon RX 640 GPU is faster than the Radeon R7 450 in gaming.

In our comparison, the Radeon RX 640 has a slightly 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.

As stated by the manufacturer, the Radeon RX 640 has significantly more memory with 4 GiB of memory compared to 2 GiB. Lots of memory is good when playing at high resolutions or with many monitors.

In addition, the Radeon RX 640 has a slightly lower TDP at 50 W when compared to the Radeon R7 450 at 65 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In conclusion, all specs and GPU benchmarks considered, will recommend the Radeon RX 640 over the Radeon R7 450.