NVIDIA GeForce 8600 GTS Mac Edition 's Advantages
Lower TDP (75W vs 140W)
NVIDIA GeForce GTX 660 's Advantages
Released 5 years late
Boost Clock1032MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (144.2GB/s vs 32.26GB/s)
928 additional rendering cores