NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Lower TDP (195W vs 250W)
NVIDIA CMP 170HX 's Advantages
Released 8 years and 5 months late
Boost Clock has increased by 33% (1410MHz vs 1058MHz)
More VRAM (16GB vs 2GB)
Larger VRAM bandwidth (1493GB/s vs 192.3GB/s)
2944 additional rendering cores