Comparison of Radeon R6 M255DX and GeForce 840A [S]ave
| Attribute |  GeForce 840A × |  Radeon R6 M255DX × |
|---|---|---|
| GPU | ||
| Release year (year) | 2014 | 2014 |
| GPU brand | Nvidia | AMD |
| GPU name | GM108 | Jet |
| Market | Laptop | - |
| Clock speed (MHz) | 1,029 | 780 |
| Turbo clock speed (MHz) | 1,124 | 855 |
| Is dual GPU | - | - |
| Model | GeForce 840A | Radeon R6 M255DX |
| Memory | ||
| Memory (MB) | 1,024 | - |
| Memory bandwidth (GB/s) | 16 | - |
| Memory bus (bit) | 64 | - |
| Memory type | DDR3 | - |
| Memory clock speed (MHz) | 1,001 | - |
| Effective memory clock speed (MHz) | 2,002 | - |
| Noise and power | ||
| TDP (W) | 33 | - |
| Raw performance | ||
| Pixel rate (GPixel/s) | 8.23 | 6.24 |
| Render output processors | 8 | 8 |
| Texture mapping units | 16 | 20 |
| Shading units | 384 | 320 |
| Floating-point performance (GFLOPS) | 790 | 499 |
| Compute units | - | 5 |
| Texture rate (GTexel/s) | 16.46 | 15.6 |
| Benchmarks | ||
| Metro: Last Light | - | 7.8 |
| PassMark | 873 | - |
| Bioshock Infinite | - | 13.1 |
| T-Rex (GFXBench 3.0) | 1707.37 | - |
| Manhattan (GFXBench 3.0) | 3613.42 | 1927.29 |
| Thief | - | 5.1 |
Help · Contact us · Disclaimer · Contributors · Developers · Donate