Comparison of GeForce GT 645M and GeForce GT 735M [S]ave
| Attribute |  GeForce GT 645M × |  GeForce GT 735M × |
|---|---|---|
| GPU | ||
| Release year (year) | 2012 | 2013 |
| GPU brand | Nvidia | Nvidia |
| GPU name | GK107 | GK208 |
| Market | Laptop | Laptop |
| Clock speed (MHz) | 709 | 575 |
| Is dual GPU | - | - |
| Model | GeForce GT 645M | GeForce GT 735M |
| 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 | ||
| TDP (W) | 32 | 33 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 5.67 | 4.6 |
| Render output processors | 16 | 8 |
| Texture mapping units | 32 | 16 |
| Shading units | 384 | 384 |
| Floating-point performance (GFLOPS) | 544 | 442 |
| Texture rate (GTexel/s) | 22.69 | 9.2 |
| Benchmarks | ||
| Battlefield 3 | - | 24 |
| Crysis 3 | 7 | - |
| Bioshock Infinite | 14.3 | 8.3 |
| Face detection (mPixels/s) | 8.49 | 8.57 |
| T-Rex (GFXBench 3.0) | 1859.4 | 2475.98 |
| Manhattan (GFXBench 3.0) | 2708.22 | 2320.76 |
| Bitcoin mining (mHash/s) | 19.12 | 39.3 |
| Sky Diver Factor | 118.77 | 103.7 |
| Fire Strike Factor | 14.91 | 11.46 |
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