Comparison of Radeon HD 8870M and Radeon HD 8850M [S]ave
| Attribute |  Radeon HD 8870M × | Radeon HD 8850M × |
|---|---|---|
| GPU | ||
| Release year (year) | 2013 | 2013 |
| Reference card | - | AMD Radeon HD 8850M 575 MHz 2 GB |
| GPU brand | AMD | AMD |
| GPU name | Venus | Venus |
| Market | Laptop | Laptop |
| Clock speed (MHz) | 725 | 725 |
| Turbo clock speed (MHz) | 775 | 775 |
| Is dual GPU | - | - |
| Model | Radeon HD 8870M | Radeon HD 8850M |
| Memory | ||
| Memory (MB) | 2,048 | 2,048 |
| Memory bandwidth (GB/s) | 72 | 72 |
| Memory bus (bit) | 128 | 128 |
| Memory type | GDDR5 | GDDR5 |
| Memory clock speed (MHz) | 1,125 | 1,125 |
| Effective memory clock speed (MHz) | 4,500 | 4,500 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 12.4 | 12.4 |
| Render output processors | 16 | 16 |
| Texture mapping units | 40 | 40 |
| Shading units | 640 | 640 |
| Floating-point performance (GFLOPS) | 992 | 992 |
| Compute units | 10 | 10 |
| Texture rate (GTexel/s) | 31 | 31 |
| Benchmarks | ||
| Bioshock Infinite | 19.3 | 16.9 |
| Battlefield 4 | 65.95 | - |
| Face detection (mPixels/s) | 24.1 | 19.64 |
| T-Rex (GFXBench 3.0) | 2077.4 | 3028.4 |
| Manhattan (GFXBench 3.0) | 3714.76 | 2852.7 |
| Bitcoin mining (mHash/s) | 106.85 | 84.38 |
| Sky Diver Factor | 158.45 | 147.45 |
| Thief | - | 11.5 |
| Fire Strike Factor | 16.52 | 17.08 |
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