Comparison of Radeon HD 4670 X2 and Radeon HD 6830M [S]ave
| Attribute |  Radeon HD 4670 X2 × |  Radeon HD 6830M × |
|---|---|---|
| GPU | ||
| Release year (year) | 2008 | 2011 |
| GPU brand | ATI | AMD |
| GPU name | RV730 | Granville |
| Market | Desktop | Laptop |
| Clock speed (MHz) | 750 | 575 |
| Is dual GPU | + | - |
| Model | Radeon HD 4670 X2 | Radeon HD 6830M |
| Memory | ||
| Memory (MB) | 1,024 | 1,024 |
| Memory bandwidth (GB/s) | 44.8 | 25.6 |
| Memory bus (bit) | 256 | 128 |
| Memory type | GDDR3 | DDR3 |
| Memory clock speed (MHz) | 700 | 800 |
| Effective memory clock speed (MHz) | 1,400 | 1,600 |
| Noise and power | ||
| TDP (W) | 118 | 39 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 12 | 9.2 |
| Render output processors | 16 | 16 |
| Texture mapping units | 64 | 40 |
| Shading units | 640 | 800 |
| Floating-point performance (GFLOPS) | 960 | 920 |
| Compute units | 8 | 10 |
| Texture rate (GTexel/s) | 48 | 23 |
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