Comparison of Radeon HD 8770M and Radeon HD 8550M [S]ave
| Attribute |  Radeon HD 8770M × | Radeon HD 8550M × |
|---|---|---|
| GPU | ||
| Release year (year) | 2013 | 2014 |
| GPU brand | AMD | AMD |
| GPU name | Mars | Sun |
| Market | Laptop | Laptop |
| Clock speed (MHz) | 775 | 650 |
| Turbo clock speed (MHz) | 825 | 850 |
| Is dual GPU | - | - |
| Model | Radeon HD 8770M | Radeon HD 8550M |
| Memory | ||
| Memory (MB) | 2,048 | 1,024 |
| Memory bandwidth (GB/s) | 72 | 14.4 |
| Memory bus (bit) | 128 | 64 |
| Memory type | GDDR5 | DDR3 |
| Memory clock speed (MHz) | 1,125 | 900 |
| Effective memory clock speed (MHz) | 4,500 | 1,800 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 6.6 | 6.8 |
| Render output processors | 8 | 8 |
| Texture mapping units | 24 | 20 |
| Shading units | 384 | 320 |
| Floating-point performance (GFLOPS) | 634 | 544 |
| Compute units | 6 | 5 |
| Texture rate (GTexel/s) | 19.8 | 17 |
| Benchmarks | ||
| 3DMark 11 Graphics | 12,680 | 4,700 |
| 3DMark Vantage Graphics | 7,078 | 3,858 |
| 3DMark06 | 1,934 | 1,307 |
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