NVIDIA Quadro P620 's Advantages
Released 4 years and 3 months late
Boost Clock has increased by 55% (1354MHz vs 876MHz)
Lower TDP (40W vs 245W)
NVIDIA Tesla K40s 's Advantages
More VRAM (12GB vs 2GB)
Larger VRAM bandwidth (288.4GB/s vs 80.13GB/s)
2368 additional rendering cores