ATI Mobility Radeon HD 4670 Mac Edition 's Advantages
Released 1 years and 2 months late
208 additional rendering cores
Lower TDP (35W vs 75W)
NVIDIA GeForce 9800M GTX 's Advantages
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (51.20GB/s vs 25.28GB/s)