Comparison of Radeon HD 8850 and Radeon R9 285X [S]ave
| Attribute |  Radeon R9 285X × |  Radeon HD 8850 × |
|---|---|---|
| GPU | ||
| Release year (year) | 2016 | 2013 |
| GPU brand | AMD | AMD |
| GPU name | Tonga | Hainan PRO |
| Market | - | Desktop |
| Clock speed (MHz) | 1,002 | 1,000 |
| Is dual GPU | - | - |
| Model | Radeon R9 285X | Radeon HD 8850 |
| Memory | ||
| Memory (MB) | 3,072 | 2,048 |
| Memory bandwidth (GB/s) | 264 | 153.6 |
| Memory bus (bit) | 384 | 256 |
| Memory type | GDDR5 | GDDR5 |
| Memory clock speed (MHz) | 1,375 | 1,200 |
| Effective memory clock speed (MHz) | 5,500 | 4,800 |
| Noise and power | ||
| TDP (W) | 200 | 150 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 32.1 | 32 |
| Render output processors | 32 | 32 |
| Texture mapping units | 128 | 96 |
| Shading units | 2,048 | 1,536 |
| Floating-point performance (GFLOPS) | 4,104 | 3,072 |
| Compute units | 32 | 24 |
| Texture rate (GTexel/s) | 128.3 | 96 |
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