NVIDIA GeForce GTX 660 vs NVIDIA Quadro K620

Compare NVIDIA GeForce GTX 660 3 GB vs NVIDIA Quadro K620 2 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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Benchmark Score

Overall Score

General gaming and workstation score

816 points

166% significantly better overall score

306 points

Flux Core frame rate

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

18 FPS

12 FPS significantly higher Flux Core frame rate

7 FPS

Electron frame rate

Randomly generated noise sphere test

11 FPS

6 FPS significantly higher Electron frame rate

5 FPS

City frame rate

Procedurally generated city scene with voxel rendering

13 FPS

9 FPS significantly higher City frame rate

4 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

9 FPS

5 FPS significantly higher Clouds frame rate

4 FPS

Free GPU Benchmark

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

122.56 points

111% significantly higher Blender score

58.07 points

Geekbench 5 (CUDA) score

CUDA compute benchmark

8583 points

29% slightly higher Geekbench 5 (CUDA) score

6653 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

11381 points

65% significantly higher Geekbench 5 (OpenCL) score

6869 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

10693 points

62% significantly higher Geekbench 5 (Vulkan) score

6567 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

11353 points

69% significantly higher Geekbench 6 (OpenCL) score

6697 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

11858 points

101% significantly higher Geekbench 6 (Vulkan) score

5877 points

Specifications

Core Clock Speed

Nominal chip frequency

980 MHz

1000 MHz

2% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1032 MHz

1124 MHz

8% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

3 GiB

49% significantly more memory

2 GiB

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

400% significantly higher memory bandwidth

28.8 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

140 W

45 W

211% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

20.64 Gigapixels/s

14% slightly higher pixel rate

17.98 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

82.56 Gigatexels/s

206% significantly higher texture rate

26.98 Gigatexels/s

Shading Units

Number of processors dedicated to shader processing

960

150% significantly more shading units

384

Texture Mapping Units

Number of processors dedicated to applying textures

233% 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

376th of 586

Release date

The official date of release of this chip

2014 July

Memory Type

The type of memory used by this chip

GDDR5

DDR3

DirectX Support

Maximum version of DirectX supported

11.0

OpenGL Support

Maximum version of OpenGL supported

4.5

GeForce GTX 660 vs Quadro K620 specs and performance

For gaming, the GeForce GTX 660 graphics card is better than the Quadro K620 in our tests.

Our database shows that the Quadro K620 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 Quadro K620 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.

Next up, in terms of GPU memory, the GeForce GTX 660 has significantly more memory with 3 GiB of memory compared to 2 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 Quadro K620 has a significantly lower TDP at 45 W when compared to the GeForce GTX 660 at 140 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 660 over the Quadro K620.