Comparison of GeForce GTX 850M and NVIDIA Quadro K620 [S]ave
| Attribute |  GeForce GTX 850M × |  NVIDIA Quadro K620 × |
|---|---|---|
| GPU | ||
| Release year (year) | 2014 | 2014 |
| GPU brand | Nvidia | Nvidia |
| GPU name | GM107 | GM107 |
| Market | Laptop | - |
| Clock speed (MHz) | 902 | 1,058 |
| Turbo clock speed (MHz) | 936 | 1,124 |
| Is dual GPU | - | - |
| Model | GeForce GTX 850M | NVIDIA Quadro K620 |
| Memory | ||
| Memory (MB) | 2,048 | 2,048 |
| Memory bandwidth (GB/s) | 32 | 28.8 |
| Memory bus (bit) | 128 | 128 |
| Memory type | DDR3 | DDR3 |
| Memory clock speed (MHz) | 1,001 | 900 |
| Effective memory clock speed (MHz) | 2,002 | 1,800 |
| Noise and power | ||
| TDP (W) | 45 | 41 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 14.43 | 16.93 |
| Render output processors | 16 | 16 |
| Texture mapping units | 40 | 16 |
| Shading units | 640 | 384 |
| Floating-point performance (GFLOPS) | 1,155 | 812 |
| Texture rate (GTexel/s) | 36.1 | 16.93 |
| Benchmarks | ||
| Metro: Last Light | - | 11 |
| Bioshock Infinite | - | 15 |
| Battlefield 4 | 20.4 | - |
| Face detection (mPixels/s) | 37.72 | 25.44 |
| T-Rex (GFXBench 3.0) | 2606.42 | 3354.04 |
| Manhattan (GFXBench 3.0) | 1764.49 | 2515.31 |
| Bitcoin mining (mHash/s) | 150.96 | 97.66 |
| Sky Diver Factor | 225.07 | - |
| Thief | 18.4 | 10 |
| Fire Strike Factor | 26.99 | - |
| Ocean surface simulation (frames/s) | - | 299.75 |
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