Comparison of Radeon HD 8730M and GeForce 840A [S]ave
| Attribute |  Radeon HD 8730M × |  GeForce 840A × |
|---|---|---|
| GPU | ||
| Release year (year) | 2013 | 2014 |
| GPU brand | AMD | Nvidia |
| GPU name | Mars | GM108 |
| Market | Laptop | Laptop |
| Clock speed (MHz) | 650 | 1,029 |
| Turbo clock speed (MHz) | 700 | 1,124 |
| Is dual GPU | - | - |
| Model | Radeon HD 8730M | GeForce 840A |
| Memory | ||
| Memory (MB) | 1,024 | 1,024 |
| Memory bandwidth (GB/s) | 32 | 16 |
| Memory bus (bit) | 128 | 64 |
| Memory type | DDR3 | DDR3 |
| Memory clock speed (MHz) | 1,000 | 1,001 |
| Effective memory clock speed (MHz) | 2,000 | 2,002 |
| Noise and power | ||
| TDP (W) | - | 33 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 5.6 | 8.23 |
| Render output processors | 8 | 8 |
| Texture mapping units | 24 | 16 |
| Shading units | 384 | 384 |
| Floating-point performance (GFLOPS) | 538 | 790 |
| Compute units | 6 | - |
| Texture rate (GTexel/s) | 16.8 | 16.46 |
| Benchmarks | ||
| FarCry 3 | 5.7 | - |
| Particle simulation (mInteraction/s) | 150.76 | - |
| T-Rex (Compubench 1.5) (frames/s) | 1.31 | - |
| Video composition (frames/s) | 18.75 | - |
| PassMark | - | 873 |
| Face detection (mPixels/s) | 6.51 | - |
| T-Rex (GFXBench 3.0) | 3346.51 | 1707.37 |
| Manhattan (GFXBench 3.0) | 3712.14 | 3613.42 |
| Ocean surface simulation (frames/s) | 289.46 | - |
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