Comparison of Radeon R9 285X and Radeon HD 7970 [S]ave
| Attribute |  Radeon HD 7970 × |  Radeon R9 285X × |
|---|---|---|
| GPU | ||
| Release year (year) | 2011 | 2016 |
| GPU brand | AMD | AMD |
| GPU name | Tahiti XT | Tonga |
| Market | Desktop | - |
| Clock speed (MHz) | 925 | 1,002 |
| Is dual GPU | - | - |
| Model | Radeon HD 7970 | Radeon R9 285X |
| Memory | ||
| Memory (MB) | 3,072 | 3,072 |
| Memory bandwidth (GB/s) | 264 | 264 |
| Memory bus (bit) | 384 | 384 |
| Memory type | GDDR5 | GDDR5 |
| Memory clock speed (MHz) | 1,375 | 1,375 |
| Effective memory clock speed (MHz) | 5,500 | 5,500 |
| Noise and power | ||
| TDP (W) | 250 | 200 |
| Load power consumption (W) | 391 | - |
| Idle power consumption (W) | 113 | - |
| Load noise level (dB) | 55.2 | - |
| Idle noise level (dB) | 40.2 | - |
| Raw performance | ||
| Pixel rate (GPixel/s) | 29.6 | 32.1 |
| Render output processors | 32 | 32 |
| Texture mapping units | 128 | 128 |
| Shading units | 2,048 | 2,048 |
| Floating-point performance (GFLOPS) | 3,789 | 4,104 |
| Compute units | 32 | 32 |
| Texture rate (GTexel/s) | 118.4 | 128.3 |
| Benchmarks | ||
| Bioshock Infinite | 78 | - |
| Hitman: Absolution | 73 | - |
| Cloud Gate Factor | 21.46 | - |
| Face detection (mPixels/s) | 49.05 | - |
| Bitcoin mining (mHash/s) | 447.28 | - |
| Sky Diver Factor | 380.04 | - |
| Fire Strike Factor | 62.9 | - |
| Ocean surface simulation (frames/s) | 261.64 | - |
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