NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Boost Clock1058MHz
Larger VRAM bandwidth (192.3GB/s vs 96.00GB/s)
768 additional rendering cores
AMD FirePro W4300 's Advantages
Released 2 years and 8 months late
More VRAM (4GB vs 2GB)
Lower TDP (50W vs 195W)