Comparison of Radeon HD 6870 X2 and Radeon HD 6870 1600SP [S]ave
| Attribute |  Radeon HD 6870 X2 × |  Radeon HD 6870 1600SP × |
|---|---|---|
| GPU | ||
| Release year (year) | 2011 | 2013 |
| Reference card | - | AMD Radeon HD 6870 1600SP Edition 850 MHz 1 GB |
| GPU brand | AMD | AMD |
| GPU name | Barts XT | Cypress |
| Market | Desktop | Desktop |
| Clock speed (MHz) | 900 | 900 |
| Is dual GPU | + | - |
| Model | Radeon HD 6870 X2 | Radeon HD 6870 1600SP |
| Memory | ||
| Memory (MB) | 2,048 | 1,024 |
| Memory bandwidth (GB/s) | 268.8 | 134.4 |
| Memory bus (bit) | 512 | 256 |
| Memory type | GDDR5 | GDDR5 |
| Memory clock speed (MHz) | 1,050 | 1,050 |
| Effective memory clock speed (MHz) | 4,200 | 4,200 |
| Noise and power | ||
| TDP (W) | 300 | 175 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 57.6 | 28.8 |
| Render output processors | 64 | 32 |
| Texture mapping units | 112 | 80 |
| Shading units | 2,240 | 1,600 |
| Floating-point performance (GFLOPS) | 4,032 | 2,880 |
| Compute units | 28 | 20 |
| Texture rate (GTexel/s) | 100.8 | 72 |
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