NVIDIA GeForce GTX 1660 SUPER vs AMD Radeon RX 640

Compare NVIDIA GeForce GTX 1660 SUPER 6 GB 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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GPU Comparison

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AMD Radeon RX 640

Price

The cheapest price from our partner retailers

$ 191.88

$ 8.11 slightly less expensive

$ 199.99

Benchmark Score

Overall Score

General gaming and workstation score

3755 points

575% significantly better overall score

556 points

Flux Core frame rate

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

84 FPS

70 FPS significantly higher Flux Core frame rate

14 FPS

Electron frame rate

Randomly generated noise sphere test

50 FPS

41 FPS significantly higher Electron frame rate

9 FPS

City frame rate

Procedurally generated city scene with voxel rendering

61 FPS

48 FPS significantly higher City frame rate

13 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

38 FPS

34 FPS significantly higher Clouds frame rate

4 FPS

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

60772 points

282% significantly higher Geekbench 5 (OpenCL) score

15883 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

55624 points

250% significantly higher Geekbench 5 (Vulkan) score

15859 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

64068 points

346% significantly higher Geekbench 6 (OpenCL) score

14348 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

60513 points

269% significantly higher Geekbench 6 (Vulkan) score

16397 points

Specifications

Core Clock Speed

Nominal chip frequency

1530 MHz

41% slightly higher core clock speed

1082 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

1785 MHz

38% slightly higher boost clock speed

1287 MHz

Memory

Onboard memory size for textures and vertices

6 GiB

49% significantly more memory

4 GiB

Memory Bus Width

Number of parallel lines to the memory chips

192 Bit

200% significantly larger memory bus width

64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

336 GB/s

499% significantly higher memory bandwidth

56 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

125 W

50 W

150% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

85.68 Gigapixels/s

315% significantly higher pixel rate

20.6 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

157.1 Gigatexels/s

205% significantly higher texture rate

51.48 Gigatexels/s

Texture Mapping Units

Number of processors dedicated to applying textures

120% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

200% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

129th of 586

318th of 586

Family

The product line

Radeon 600 Series

Release date

The official date of release of this chip

2019 October

Memory Type

The type of memory used by this chip

GDDR6

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

GeForce GTX 1660 SUPER vs Radeon RX 640 comparison

In our benchmarks, the GeForce GTX 1660 SUPER beats the Radeon RX 640 in gaming performance.

In our comparison, the GeForce GTX 1660 SUPER 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. In addition, the GeForce GTX 1660 SUPER also has a slightly higher boost clock speed. This is a frequency that can be reached if the GPU is cooled sufficiently and has enough power.

As stated by the manufacturer, the GeForce GTX 1660 SUPER has significantly more memory with 6 GiB of memory compared to 4 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the Radeon RX 640 has a significantly lower TDP at 50 W when compared to the GeForce GTX 1660 SUPER at 125 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 GeForce GTX 1660 SUPER over the Radeon RX 640.