NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Larger VRAM bandwidth (192.3GB/s vs 192.0GB/s)
640 additional rendering cores
NVIDIA GeForce GTX 1650 GDDR6 's Advantages
Released 7 years late
Boost Clock has increased by 50% (1590MHz vs 1058MHz)
More VRAM (4GB vs 2GB)
Lower TDP (75W vs 195W)