NVIDIA Tesla M40 's Advantages
More VRAM (12GB vs 5GB)
Larger VRAM bandwidth (288.4GB/s vs 140.2GB/s)
2048 additional rendering cores
NVIDIA Quadro P2000 's Advantages
Released 1 years and 3 months late
Boost Clock has increased by 33% (1480MHz vs 1112MHz)
Lower TDP (75W vs 250W)