AMD Radeon Pro 580X 's Advantages
Released 11 years and 5 months late
Boost Clock1200MHz
More VRAM (8GB vs 512GB)
Larger VRAM bandwidth (218.9GB/s vs 20.32GB/s)
2272 additional rendering cores
NVIDIA GeForce 8600M GT Mac Edition 's Advantages
Lower TDP (20W vs 185W)