NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Larger VRAM bandwidth (192.3GB/s vs 48.06GB/s)
1152 additional rendering cores
NVIDIA GeForce GT 1030 's Advantages
Released 4 years and 1 months late
Boost Clock has increased by 39% (1468MHz vs 1058MHz)
Lower TDP (30W vs 195W)