NVIDIA GeForce 8600M GT Mac Edition 's Advantages
Larger VRAM bandwidth (20.32GB/s vs 14.40GB/s)
AMD Radeon HD 7550M 's Advantages
Released 4 years and 3 months late
Boost Clock550MHz
More VRAM (1024GB vs 512GB)
368 additional rendering cores
Lower TDP (14W vs 20W)