Comparison of GeForce 840M and Radeon HD 8570M [S]ave
| Attribute |  GeForce 840M × |  Radeon HD 8570M × |
|---|---|---|
| GPU | ||
| Release year (year) | 2014 | 2013 |
| GPU brand | Nvidia | AMD |
| GPU name | GM108 | Sun |
| Market | Laptop | Laptop |
| Clock speed (MHz) | 1,029 | 750 |
| Turbo clock speed (MHz) | 1,124 | 825 |
| Is dual GPU | - | - |
| Model | GeForce 840M | Radeon HD 8570M |
| Memory | ||
| Memory (MB) | 1,024 | 1,024 |
| Memory bandwidth (GB/s) | 16 | 16 |
| Memory bus (bit) | 64 | 64 |
| Memory type | DDR3 | DDR3 |
| Memory clock speed (MHz) | 1,001 | 1,000 |
| Effective memory clock speed (MHz) | 2,002 | 2,000 |
| Noise and power | ||
| TDP (W) | 33 | - |
| Raw performance | ||
| Pixel rate (GPixel/s) | 8.23 | 6.6 |
| Render output processors | 8 | 8 |
| Texture mapping units | 16 | 20 |
| Shading units | 384 | 320 |
| Floating-point performance (GFLOPS) | 790 | 528 |
| Compute units | - | 5 |
| Texture rate (GTexel/s) | 16.46 | 16.5 |
| Benchmarks | ||
| Crysis 3 | - | 2.3 |
| PassMark | - | 548 |
| Bioshock Infinite | - | 4 |
| Cloud Gate Factor | - | 7.53 |
| Battlefield 4 | 11.2 | - |
| Face detection (mPixels/s) | 22.54 | - |
| T-Rex (GFXBench 3.0) | 3359.62 | 2447.38 |
| Manhattan (GFXBench 3.0) | 1855.62 | 1528.31 |
| Bitcoin mining (mHash/s) | 94.68 | - |
| Sky Diver Factor | 120.22 | 70.61 |
| Thief | 9.1 | - |
| Fire Strike Factor | 12.59 | 7.58 |
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