NVIDIA Tesla K40s 's Advantages
More VRAM (12GB vs 5GB)
Larger VRAM bandwidth (288.4GB/s vs 140.2GB/s)
1856 additional rendering cores
NVIDIA Quadro P2000 's Advantages
Released 3 years and 3 months late
Boost Clock has increased by 69% (1480MHz vs 876MHz)
Lower TDP (75W vs 245W)