NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Larger VRAM bandwidth (192.3GB/s vs 96.00GB/s)
640 additional rendering cores
AMD Radeon RX 560DX 's Advantages
Released 5 years late
Boost Clock has increased by 11% (1175MHz vs 1058MHz)
More VRAM (4GB vs 2GB)
Lower TDP (65W vs 195W)