NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Released 10 months late
Boost Clock1058MHz
More VRAM (2GB vs 128GB)
Larger VRAM bandwidth (192.3GB/s vs 9.600GB/s)
1520 additional rendering cores
NVIDIA GeForce 9400 GT Rev. 3 's Advantages
Lower TDP (50W vs 195W)