Comparison of Radeon HD 6870M and AMD FirePro M8900 [S]ave
| Attribute |  AMD FirePro M8900 × |  Radeon HD 6870M × |
|---|---|---|
| GPU | ||
| Release year (year) | 2011 | 2011 |
| GPU brand | AMD | AMD |
| GPU name | Blackcomb | Granville |
| Market | Laptop | Laptop |
| Clock speed (MHz) | 680 | 675 |
| Is dual GPU | - | - |
| Model | AMD FirePro M8900 | Radeon HD 6870M |
| Memory | ||
| Memory (MB) | 2,048 | 1,024 |
| Memory bandwidth (GB/s) | 115.2 | 64 |
| Memory bus (bit) | 256 | 128 |
| Memory type | GDDR5 | GDDR5 |
| Memory clock speed (MHz) | 900 | 1,000 |
| Effective memory clock speed (MHz) | 3,600 | 4,000 |
| Noise and power | ||
| TDP (W) | 75 | 50 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 21.76 | 10.8 |
| Render output processors | 32 | 16 |
| Texture mapping units | 48 | 40 |
| Shading units | 960 | 800 |
| Floating-point performance (GFLOPS) | 1,306 | 1,080 |
| Compute units | 12 | 10 |
| Texture rate (GTexel/s) | 32.6 | 27 |
| Benchmarks | ||
| 3DMark 11 Graphics | 16,703 | 14,396 |
| 3DMark06 | 16,703 | 14,396 |
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