NVIDIA GeForce GT 550M 's Advantages
Larger VRAM bandwidth (28.80GB/s vs 12.80GB/s)
NVIDIA GeForce GT 720M 's Advantages
Released 2 years and 11 months late
Boost Clock758MHz
More VRAM (2GB vs 1024GB)
96 additional rendering cores
Lower TDP (33W vs 35W)