NVIDIA Tesla K80 's Advantages
More VRAM (12GB vs 5GB)
Larger VRAM bandwidth (240.6GB/s vs 200.2GB/s)
1216 additional rendering cores
NVIDIA Quadro P2200 's Advantages
Released 4 years and 7 months late
Boost Clock has increased by 81% (1493MHz vs 824MHz)
Lower TDP (75W vs 300W)