ATI Mobility Radeon HD 5850 Mac Edition 's Advantages
Larger VRAM bandwidth (64.00GB/s vs 14.40GB/s)
704 additional rendering cores
NVIDIA GeForce GT 625M 's Advantages
Released 2 years and 9 months late
More VRAM (2GB vs 1024GB)
Lower TDP (15W vs 30W)