ATI Mobility Radeon HD 4670 Mac Edition 's Advantages
Released 1 years and 10 months late
224 additional rendering cores
Lower TDP (35W vs 65W)
NVIDIA GeForce 8800M GTX 's Advantages
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (51.20GB/s vs 25.28GB/s)