NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Released 4 years and 7 months late
Boost Clock1058MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (192.3GB/s vs 32.00GB/s)
1216 additional rendering cores
ATI Radeon HD 4670 's Advantages
Lower TDP (59W vs 195W)