NVIDIA GeForce GTX 650 's Advantages
Lower TDP (65W vs 195W)
NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Released 7 months late
Boost Clock1058MHz
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (192.3GB/s vs 80.00GB/s)
1152 additional rendering cores