NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Lower TDP (195W vs 225W)
AMD Radeon Pro V520 's Advantages
Released 7 years and 8 months late
Boost Clock has increased by 51% (1600MHz vs 1058MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (512.0GB/s vs 192.3GB/s)
768 additional rendering cores