NVIDIA GeForce GT 620M 's Advantages
Lower TDP (15W vs 75W)
NVIDIA GeForce GTX 960M 's Advantages
Released 2 years and 7 months late
Boost Clock1176MHz
More VRAM (4GB vs 1GB)
Larger VRAM bandwidth (80.19GB/s vs 28.80GB/s)
544 additional rendering cores