NVIDIA GeForce GT 650M 's Advantages
Released 4 years and 10 months late
Boost Clock950MHz
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (28.80GB/s vs 12.80GB/s)
368 additional rendering cores
NVIDIA GeForce 8600M GS 's Advantages
Lower TDP (20W vs 45W)