NVIDIA GeForce GTX 1660 vs AMD Radeon RX 640

Compare NVIDIA GeForce GTX 1660 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

$ 229.39

$ 199.99

$ 29.40 slightly less expensive

Benchmark Score

Overall Score

General gaming and workstation score

3653 points

557% significantly better overall score

556 points

Flux Core frame rate

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

82 FPS

68 FPS significantly higher Flux Core frame rate

14 FPS

Electron frame rate

Randomly generated noise sphere test

49 FPS

40 FPS significantly higher Electron frame rate

9 FPS

City frame rate

Procedurally generated city scene with voxel rendering

60 FPS

48 FPS significantly higher City frame rate

13 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

37 FPS

33 FPS significantly higher Clouds frame rate

4 FPS

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

55712 points

250% significantly higher Geekbench 5 (OpenCL) score

15883 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

51028 points

221% significantly higher Geekbench 5 (Vulkan) score

15859 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

59886 points

317% significantly higher Geekbench 6 (OpenCL) score

14348 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

56143 points

242% 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

192.1 GB/s

243% significantly higher memory bandwidth

56 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

120 W

50 W

139% 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

133rd of 586

318th of 586

Family

The product line

Radeon 600 Series

Release date

The official date of release of this chip

2019 March

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

4.5

4.6

GeForce GTX 1660 vs Radeon RX 640 benchmarks

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

The GeForce GTX 1660 has a slightly higher core clock speed. This is the frequency at which the graphics core is running at. While not necessarily an indicator of overall performance, this metric can be useful when comparing two GPUs based on the same architecture. In addition, the GeForce GTX 1660 also has a slightly higher boost clock speed. The boost clock speed is the frequency that the GPU core can reach if the temperature is low enough. The allows for higher performance in certain scenarios.

As stated by the manufacturer, the GeForce GTX 1660 has significantly more memory with 6 GiB of memory compared to 4 GiB. Lots of memory is good when playing at high resolutions or with many monitors.

In addition, the Radeon RX 640 has a significantly lower TDP at 50 W when compared to the GeForce GTX 1660 at 120 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 GeForce GTX 1660 over the Radeon RX 640.