NVIDIA GeForce 920MX vs NVIDIA GeForce GTX 660M

Compare NVIDIA GeForce 920MX vs NVIDIA GeForce GTX 660M 2 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

Benchmark Score
Other Benchmarks
Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

213 points

223 points

4% slightly better overall score

Flux Core frame rate

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

4 FPS

5 FPS

1 FPS slightly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

3 FPS

0 FPS slightly higher Electron frame rate

3 FPS

City frame rate

Procedurally generated city scene with voxel rendering

3 FPS

0 FPS slightly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

3 FPS

0 FPS slightly higher Clouds frame rate

2 FPS

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Other Benchmarks

Geekbench 5 (CUDA) score

CUDA compute benchmark

4274 points

47% significantly higher Geekbench 5 (CUDA) score

2901 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

4210 points

15% slightly higher Geekbench 5 (OpenCL) score

3649 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

3723 points

5% slightly higher Geekbench 5 (Vulkan) score

3524 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

4072 points

2% slightly higher Geekbench 6 (OpenCL) score

3991 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

3591 points

1% slightly higher Geekbench 6 (Vulkan) score

3524 points

Specifications

Core Clock Speed

Nominal chip frequency

965 MHz

1% slightly higher core clock speed

950 MHz

Boost Clock Speed

Higher turbo frequency when power conditions are met

993 MHz

4% slightly higher boost clock speed

950 MHz

Memory Bus Width

Number of parallel lines to the memory chips

64 Bit

128 Bit

100% significantly larger memory bus width

Memory Bandwidth

Data transfer speed between GPU core and memory

14.4 GB/s

64 GB/s

344% significantly higher memory bandwidth

TDP

Thermal Design Power: Measure of heat generated by the GPU

16 W

212% significantly lower TDP

50 W

Pixel Rate

Number of pixels that can be rendered per second

7.94 Gigapixels/s

4% slightly higher pixel rate

7.6 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

23.83 Gigatexels/s

30.4 Gigatexels/s

27% slightly higher texture rate

Shading Units

Number of processors dedicated to shader processing

256

384

49% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

33% slightly 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

417th of 586

414th of 586

Release date

The official date of release of this chip

2016 March

2012 March

Memory Type

The type of memory used by this chip

DDR3

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

11.2

OpenGL Support

Maximum version of OpenGL supported

4.6

4.5

GeForce 920MX vs GeForce GTX 660M specs and performance

For gaming, the GeForce GTX 660M graphics card is better than the GeForce 920MX in our tests.

In our comparison, the GeForce 920MX 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 920MX also has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

In addition, the GeForce 920MX has a significantly lower TDP at 16 W when compared to the GeForce GTX 660M at 50 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 660M over the GeForce 920MX.