NVIDIA GeForce GTX 660 vs NVIDIA GeForce GTX 960M

Compare NVIDIA GeForce GTX 660 3 GB vs NVIDIA GeForce GTX 960M 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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Benchmark Score

Overall Score

General gaming and workstation score

816 points

37% slightly better overall score

593 points

Flux Core frame rate

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

18 FPS

5 FPS significantly higher Flux Core frame rate

13 FPS

Electron frame rate

Randomly generated noise sphere test

11 FPS

0 FPS slightly higher Electron frame rate

11 FPS

City frame rate

Procedurally generated city scene with voxel rendering

13 FPS

3 FPS significantly higher City frame rate

10 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

9 FPS

Identical

9 FPS

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

1317 points

6% slightly higher 3DMark Graphics score

1232 points

Blender score

Cycles Render (Samples per minute)

122.56 points

139.59 points

13% slightly higher Blender score

Geekbench 5 (CUDA) score

CUDA compute benchmark

8583 points

11818 points

37% slightly higher Geekbench 5 (CUDA) score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

11381 points

12257 points

7% slightly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

10693 points

1% slightly higher Geekbench 5 (Vulkan) score

10582 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

11353 points

11578 points

1% slightly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

11858 points

24% slightly higher Geekbench 6 (Vulkan) score

9535 points

Specifications

Core Clock Speed

Nominal chip frequency

980 MHz

1097 MHz

11% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1032 MHz

1176 MHz

13% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

3 GiB

4 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

144.2 GB/s

79% significantly higher memory bandwidth

80.19 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

140 W

65 W

115% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

20.64 Gigapixels/s

9% slightly higher pixel rate

18.82 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

82.56 Gigatexels/s

75% significantly higher texture rate

47.04 Gigatexels/s

Floating Point Performance

Raw number of floating point operations per second

1.98 TFLOPS

31% slightly better floating point performance

1.50 TFLOPS

Shading Units

Number of processors dedicated to shader processing

960

49% significantly more shading units

640

Texture Mapping Units

Number of processors dedicated to applying textures

100% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

49% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

276th of 586

310th of 586

Release date

The official date of release of this chip

2015 March

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

11.0

12.0

OpenGL Support

Maximum version of OpenGL supported

4.5

GeForce GTX 660 vs GeForce GTX 960M benchmarks

For gaming, the GeForce GTX 660 graphics card is better than the GeForce GTX 960M in our tests.

In our comparison, the GeForce GTX 960M 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 960M also has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

Furthermore, the spec sheet for both these GPUs show that the GeForce GTX 960M has slightly more memory with 4 GiB of memory compared to 3 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the GeForce GTX 960M has a significantly lower TDP at 65 W when compared to the GeForce GTX 660 at 140 W. TDP (Thermal Design Power) measures total heat output from the chip.

According to the results of the hardwareDB benchmark utility, the GeForce GTX 660 is faster than the GeForce GTX 960M.