Comparison of Radeon R9 M280X and Radeon R9 M385X [S]ave
| Attribute |  Radeon R9 M385X × | Radeon R9 M280X × |
|---|---|---|
| GPU | ||
| Release year (year) | 2015 | 2015 |
| Reference card | - | AMD Radeon R9 M280X 1 GHz 2 GB |
| GPU brand | AMD | AMD |
| GPU name | Strato | Saturn |
| Market | Laptop | Laptop |
| Clock speed (MHz) | 1,000 | 900 |
| Turbo clock speed (MHz) | 1,100 | 1,000 |
| Is dual GPU | - | - |
| Model | Radeon R9 M385X | Radeon R9 M280X |
| Memory | ||
| Memory (MB) | 4,096 | 4,096 |
| Memory bandwidth (GB/s) | 76.8 | 88 |
| Memory bus (bit) | 128 | 128 |
| Memory type | GDDR5 | GDDR5 |
| Memory clock speed (MHz) | 1,200 | 1,375 |
| Effective memory clock speed (MHz) | 4,800 | 5,500 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 17.6 | 16 |
| Render output processors | 16 | 16 |
| Texture mapping units | 56 | 56 |
| Shading units | 896 | 896 |
| Floating-point performance (GFLOPS) | 1,971 | 1,792 |
| Compute units | 14 | 14 |
| Texture rate (GTexel/s) | 61.6 | 56 |
| Benchmarks | ||
| Metro: Last Light | 21.7 | 19 |
| Crysis 3 | 14.8 | 13.1 |
| 3DMark 11 Graphics | 14,024 | 11,618 |
| Bioshock Infinite | 32.4 | 26.5 |
| Battlefield 4 | 26.2 | 21.3 |
| T-Rex (GFXBench 3.0) | 3357.65 | - |
| Manhattan (GFXBench 3.0) | 3707.56 | - |
| Thief | 19.2 | 30 |
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