Comparison of Radeon HD 5870 Mac and Radeon HD 6870 1600SP [S]ave
| Attribute |  Radeon HD 6870 1600SP × |  Radeon HD 5870 Mac × |
|---|---|---|
| GPU | ||
| Release year (year) | 2013 | 2010 |
| Reference card | AMD Radeon HD 6870 1600SP Edition 850 MHz 1 GB | - |
| GPU brand | AMD | ATI |
| GPU name | Cypress | Cypress |
| Market | Desktop | Desktop |
| Clock speed (MHz) | 900 | 850 |
| Is dual GPU | - | - |
| Model | Radeon HD 6870 1600SP | Radeon HD 5870 Mac |
| Memory | ||
| Memory (MB) | 1,024 | 1,024 |
| Memory bandwidth (GB/s) | 134.4 | 153 |
| Memory bus (bit) | 256 | 256 |
| Memory type | GDDR5 | GDDR5 |
| Memory clock speed (MHz) | 1,050 | 1,195 |
| Effective memory clock speed (MHz) | 4,200 | 4,780 |
| Noise and power | ||
| TDP (W) | 175 | 228 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 28.8 | 27.2 |
| Render output processors | 32 | 32 |
| Texture mapping units | 80 | 80 |
| Shading units | 1,600 | 1,600 |
| Floating-point performance (GFLOPS) | 2,880 | 2,720 |
| Compute units | 20 | 20 |
| Texture rate (GTexel/s) | 72 | 68 |
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