Comparison of Radeon R9 255 and Radeon HD 7670A [S]ave
| Attribute |  Radeon R9 255 × |  Radeon HD 7670A × |
|---|---|---|
| GPU | ||
| Release year (year) | 2013 | 2012 |
| GPU brand | AMD | AMD |
| GPU name | Cape Verde | Turks |
| Market | Desktop | Laptop |
| Clock speed (MHz) | 900 | 600 |
| Turbo clock speed (MHz) | 930 | - |
| Is dual GPU | - | - |
| Model | Radeon R9 255 | Radeon HD 7670A |
| Memory | ||
| Memory (MB) | 2,048 | 1,024 |
| Memory bandwidth (GB/s) | 73.6 | 64 |
| Memory bus (bit) | 128 | 128 |
| Memory type | GDDR5 | GDDR5 |
| Memory clock speed (MHz) | 1,150 | 1,000 |
| Effective memory clock speed (MHz) | 4,600 | 4,000 |
| Noise and power | ||
| TDP (W) | 65 | 45 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 14.88 | 4.8 |
| Render output processors | 16 | 8 |
| Texture mapping units | 32 | 24 |
| Shading units | 512 | 480 |
| Floating-point performance (GFLOPS) | 952 | 576 |
| Compute units | 8 | 6 |
| Texture rate (GTexel/s) | 29.76 | 14.4 |
| Benchmarks | ||
| PassMark | 1,765 | 1,051 |
| PassMark Direct Compute | 1,142 | 394 |
| Cloud Gate Factor | 14.43 | - |
| Sky Diver Factor | 189.14 | - |
| Fire Strike Factor | 18.88 | - |
Help · Contact us · Disclaimer · Contributors · Developers · Donate