ATI Mobility Radeon HD 5850 Mac Edition 's Advantages
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (64.00GB/s vs 50.82GB/s)
320 additional rendering cores
Lower TDP (30W vs 35W)
AMD Radeon HD 6750M Mac Edition 's Advantages
Released 1 years and 3 months late