NVIDIA Tesla K80 's Advantages
More VRAM (12GB vs 2GB)
Larger VRAM bandwidth (240.6GB/s vs 64.13GB/s)
2112 additional rendering cores
NVIDIA Quadro P600 's Advantages
Released 2 years and 3 months late
Boost Clock has increased by 89% (1557MHz vs 824MHz)
Lower TDP (40W vs 300W)