NVIDIA GeForce GTX 660 's Advantages
Released 4 years and 3 months late
Boost Clock1032MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (144.2GB/s vs 72.06GB/s)
640 additional rendering cores
ATI Radeon HD 3870 Mac Edition 's Advantages
Lower TDP (106W vs 140W)