NVIDIA GeForce 9600M GT Mac Edition 's Advantages
Lower TDP (23W vs 80W)
AMD Radeon R9 M390 Mac Edition 's Advantages
Released 6 years and 7 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (174.7GB/s vs 25.34GB/s)
992 additional rendering cores