NVIDIA GeForce GTX 780M 's Advantages
Boost Clock797MHz
More VRAM (4GB vs 1GB)
Larger VRAM bandwidth (160.0GB/s vs 16.02GB/s)
1440 additional rendering cores
NVIDIA GeForce GT 720A 's Advantages
Released 1 years and 2 months late
Lower TDP (33W vs 122W)