NVIDIA Quadro P620 's Advantages
Released 3 years and 7 months late
Boost Clock has increased by 20% (1354MHz vs 1124MHz)
Lower TDP (40W vs 68W)
NVIDIA Quadro K2200 's Advantages
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (80.19GB/s vs 80.13GB/s)
128 additional rendering cores