Comparison of Radeon HD 4830 and Mobility Radeon HD 4670 [S]ave
| Attribute |  Radeon HD 4830 × |  Mobility Radeon HD 4670 × |
|---|---|---|
| GPU | ||
| Release year (year) | 2008 | 2009 |
| GPU brand | ATI | ATI |
| GPU name | RV770 | M96 |
| Market | Desktop | Laptop |
| Clock speed (MHz) | 575 | 675 |
| Is dual GPU | - | - |
| Model | Radeon HD 4830 | Mobility Radeon HD 4670 |
| Memory | ||
| Memory (MB) | 512 | 512 |
| Memory bandwidth (GB/s) | 57.6 | 25.6 |
| Memory bus (bit) | 256 | 128 |
| Memory type | GDDR3 | GDDR3 |
| Memory clock speed (MHz) | 900 | 800 |
| Effective memory clock speed (MHz) | 1,800 | 1,600 |
| Noise and power | ||
| TDP (W) | 95 | 35 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 9.2 | 5.4 |
| Render output processors | 16 | 8 |
| Texture mapping units | 32 | 32 |
| Shading units | 640 | 320 |
| Floating-point performance (GFLOPS) | 736 | 432 |
| Compute units | 8 | 4 |
| Texture rate (GTexel/s) | 18.4 | 21.6 |
| Benchmarks | ||
| Particle simulation (mInteraction/s) | -1 | - |
| PassMark | 964 | 465 |
| Face detection (mPixels/s) | 1 | - |
| T-Rex (GFXBench 3.0) | 3354.32 | 3212.28 |
| Ocean surface simulation (frames/s) | 1 | - |
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