Attribute | GeForce GT 640M × | GeForce 920M × |
---|---|---|
GPU | ||
Release year (year) | 2012 | 2015 |
Reference card | - | Nvidia GeForce 920M 775 MHz 1 GB |
GPU brand | Nvidia | Nvidia |
GPU name | GK107 | GK208 |
Market | Laptop | Laptop |
Clock speed (MHz) | 625 | 954 |
Is dual GPU | - | - |
Model | GeForce GT 640M | GeForce 920M |
Memory | ||
Memory (MB) | 2,048 | 2,048 |
Memory bandwidth (GB/s) | 28.8 | 14.4 |
Memory bus (bit) | 128 | 64 |
Memory type | DDR3 | DDR3 |
Memory clock speed (MHz) | 900 | 900 |
Effective memory clock speed (MHz) | 1,800 | 1,800 |
Noise and power | ||
1↑TDP (W) | 32 | 33 |
Raw performance | ||
Pixel rate (GPixel/s) | 5 | 7.63 |
Render output processors | 16 | 16 |
Texture mapping units | 32 | 32 |
Shading units | 384 | 384 |
Floating-point performance (GFLOPS) | 480 | 733 |
Texture rate (GTexel/s) | 20 | 30.53 |
Benchmarks | ||
Battlefield 4 | 9.9 | 9.6 |
Face detection (mPixels/s) | 7.86 | 8.36 |
T-Rex (GFXBench 3.0) | 3339.75 | 3358.92 |
Manhattan (GFXBench 3.0) | 3590.88 | 3685.69 |
Bitcoin mining (mHash/s) | 17.38 | 40.41 |
Sky Diver Factor | 106.74 | 102.8 |
Thief | 8.35 | 5.95 |
Fire Strike Factor | 11.26 | 10.41 |