NVIDIA GeForce GTX 1660 vs AMD Radeon RX 6600M

Compare NVIDIA GeForce GTX 1660 6 GB vs AMD Radeon RX 6600M 8 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

3653 points

3903 points

6% slightly better overall score

Flux Core frame rate

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

82 FPS

92 FPS

10 FPS slightly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

49 FPS

57 FPS

8 FPS slightly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

60 FPS

77 FPS

17 FPS slightly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

37 FPS

1 FPS slightly higher Clouds frame rate

36 FPS

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

5419 points

8165 points

50% significantly higher 3DMark Graphics score

Blender score

Cycles Render (Samples per minute)

722.48 points

902.13 points

24% slightly higher Blender score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

55712 points

63711 points

14% slightly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

51028 points

7% slightly higher Geekbench 5 (Vulkan) score

47653 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

59886 points

70251 points

17% slightly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

56143 points

75065 points

33% slightly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

1530 MHz

2068 MHz

35% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1785 MHz

2416 MHz

35% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

6 GiB

8 GiB

33% slightly more memory

Memory Bus Width

Number of parallel lines to the memory chips

192 Bit

49% significantly larger memory bus width

128 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

192.1 GB/s

224 GB/s

16% slightly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

120 W

100 W

20% slightly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

85.68 Gigapixels/s

154.6 Gigapixels/s

80% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

157.1 Gigatexels/s

274.2 Gigatexels/s

74% significantly higher texture rate

Floating Point Performance

Raw number of floating point operations per second

5.03 TFLOPS

8.77 TFLOPS

74% significantly better floating point performance

Shading Units

Number of processors dedicated to shader processing

1408

1792

27% slightly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

112

27% slightly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

33% slightly more render output processors

Other details

Rank

Ranking in the hardwareDB database

133rd of 586

126th of 586

Family

The product line

Radeon RX 6000 Series

Release date

The official date of release of this chip

2019 March

2021 May

Memory Type

The type of memory used by this chip

GDDR5

GDDR6

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 6600M benchmarks

For gaming, the GeForce GTX 1660 graphics card is better than the Radeon RX 6600M in our tests.

The Radeon RX 6600M 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 Radeon RX 6600M also has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

As stated by the manufacturer, the Radeon RX 6600M has slightly more memory with 8 GiB of memory compared to 6 GiB. If you're planning at playing games at high resolutions with high-quality textures, you will need a lot of memory.

In addition, the Radeon RX 6600M has a slightly lower TDP at 100 W when compared to the GeForce GTX 1660 at 120 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 over the Radeon RX 6600M.