Comparison of Radeon HD 7870 XT and Radeon R9 270X [S]ave
| Attribute |  Radeon HD 7870 XT × |  Radeon R9 270X × |
|---|---|---|
| GPU | ||
| Release year (year) | 2012 | 2013 |
| Reference card | - | AMD Radeon R9 270X 1 GHz 2 GB |
| GPU brand | AMD | AMD |
| GPU name | Tahiti LE | Curacao |
| Market | Desktop | Desktop |
| Clock speed (MHz) | 925 | 1,100 |
| Turbo clock speed (MHz) | 975 | 1,150 |
| Is dual GPU | - | - |
| Model | Radeon HD 7870 XT | Radeon R9 270X |
| Memory | ||
| Memory (MB) | 2,048 | 2,048 |
| Memory bandwidth (GB/s) | 192 | 192 |
| Memory bus (bit) | 256 | 256 |
| Memory type | GDDR5 | GDDR5 |
| Memory clock speed (MHz) | 1,500 | 1,500 |
| Effective memory clock speed (MHz) | 6,000 | 6,000 |
| Noise and power | ||
| TDP (W) | 185 | 180 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 31.2 | 36.8 |
| Render output processors | 32 | 32 |
| Texture mapping units | 96 | 80 |
| Shading units | 1,536 | 1,280 |
| Floating-point performance (GFLOPS) | 2,995 | 2,944 |
| Compute units | 24 | 20 |
| Texture rate (GTexel/s) | 93.6 | 92 |
| Benchmarks | ||
| Metro: Last Light | 79.5 | - |
| Battlefield 3 | 72 | 65 |
| Dirt3 | - | 84 |
| Face detection (mPixels/s) | 65.4 | 57.24 |
| T-Rex (GFXBench 3.0) | 3350.68 | 3353.98 |
| Manhattan (GFXBench 3.0) | 3705.76 | 3713.26 |
| Bitcoin mining (mHash/s) | 345.79 | 251.26 |
| Sky Diver Factor | 314 | 338.41 |
| Fire Strike Factor | 47.56 | 51.83 |
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