NVIDIA GeForce GTX 780M Mac Edition 's Advantages
Released 6 months late
Boost Clock has increased by 21% (797MHz vs 657MHz)
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (160.0GB/s vs 64.13GB/s)
768 additional rendering cores
NVIDIA GeForce GTX 760M 's Advantages
Lower TDP (55W vs 122W)