Comparison of Mobility Radeon HD 4670 and Mobility Radeon HD 4850 [S]ave
| Attribute |  Mobility Radeon HD 4850 × |  Mobility Radeon HD 4670 × |
|---|---|---|
| GPU | ||
| Release year (year) | 2009 | 2009 |
| GPU brand | ATI | ATI |
| GPU name | M98 | M96 |
| Market | Laptop | Laptop |
| Clock speed (MHz) | 500 | 675 |
| Is dual GPU | - | - |
| Model | Mobility Radeon HD 4850 | Mobility Radeon HD 4670 |
| Memory | ||
| Memory (MB) | 1,024 | 512 |
| Memory bandwidth (GB/s) | 54.4 | 25.6 |
| Memory bus (bit) | 256 | 128 |
| Memory type | GDDR3 | GDDR3 |
| Memory clock speed (MHz) | 850 | 800 |
| Effective memory clock speed (MHz) | 1,700 | 1,600 |
| Noise and power | ||
| TDP (W) | - | 35 |
| Raw performance | ||
| Pixel rate (GPixel/s) | 8 | 5.4 |
| Render output processors | 16 | 8 |
| Texture mapping units | 40 | 32 |
| Shading units | 800 | 320 |
| Floating-point performance (GFLOPS) | 800 | 432 |
| Compute units | 10 | 4 |
| Texture rate (GTexel/s) | 20 | 21.6 |
| Benchmarks | ||
| PassMark | 864 | 465 |
| Cloud Gate Factor | 12.33 | - |
| T-Rex (GFXBench 3.0) | 2486.38 | 3212.28 |
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