NVIDIA Quadro M620 Mobile 's Advantages
Larger VRAM bandwidth (80.19GB/s vs 80.13GB/s)
128 additional rendering cores
Lower TDP (30W vs 40W)
NVIDIA Quadro P600 Mobile 's Advantages
Boost Clock has increased by 66% (1620MHz vs 977MHz)
More VRAM (4GB vs 2GB)