Attribute | GeForce 840M × | NVIDIA Quadro K620 × |
---|---|---|
GPU | ||
Release year (year) | 2014 | 2014 |
GPU brand | Nvidia | Nvidia |
GPU name | GM108 | GM107 |
Market | Laptop | - |
Clock speed (MHz) | 1,029 | 1,058 |
Turbo clock speed (MHz) | 1,124 | 1,124 |
Is dual GPU | - | - |
Model | GeForce 840M | NVIDIA Quadro K620 |
Memory | ||
Memory (MB) | 1,024 | 2,048 |
Memory bandwidth (GB/s) | 16 | 28.8 |
1↑Memory bus (bit) | 64 | 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) | 33 | 41 |
Raw performance | ||
Pixel rate (GPixel/s) | 8.23 | 16.93 |
Render output processors | 8 | 16 |
Texture mapping units | 16 | 16 |
Shading units | 384 | 384 |
Floating-point performance (GFLOPS) | 790 | 812 |
Texture rate (GTexel/s) | 16.46 | 16.93 |
Benchmarks | ||
Metro: Last Light | - | 11 |
Bioshock Infinite | - | 15 |
Battlefield 4 | 11.2 | - |
Face detection (mPixels/s) | 22.54 | 25.44 |
T-Rex (GFXBench 3.0) | 3359.62 | 3354.04 |
Manhattan (GFXBench 3.0) | 1855.62 | 2515.31 |
Bitcoin mining (mHash/s) | 94.68 | 97.66 |
Sky Diver Factor | 120.22 | - |
Thief | 9.1 | 10 |
Fire Strike Factor | 12.59 | - |
Ocean surface simulation (frames/s) | - | 299.75 |