NVIDIA GeForce GT 650M 's Advantages
Boost Clock has increased by 25% (950MHz vs 758MHz)
Larger VRAM bandwidth (28.80GB/s vs 12.80GB/s)
192 additional rendering cores
NVIDIA GeForce GT 720M 's Advantages
Released 1 years and 9 months late
More VRAM (2GB vs 1024GB)
Lower TDP (33W vs 45W)