ATI Mobility Radeon HD 5850 Mac Edition 's Advantages
Released 2 years and 8 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (64.00GB/s vs 6.400GB/s)
792 additional rendering cores
NVIDIA GeForce 8400M G 's Advantages
Lower TDP (10W vs 30W)