NVIDIA GeForce GT 650M 's Advantages
Released 3 years and 8 months late
Boost Clock950MHz
More VRAM (1024GB vs 512GB)
320 additional rendering cores
Lower TDP (45W vs 75W)
NVIDIA GeForce 9800S 's Advantages
Larger VRAM bandwidth (51.14GB/s vs 28.80GB/s)