NVIDIA Quadro M6000 's Advantages
More VRAM (12GB vs 6GB)
Larger VRAM bandwidth (317.4GB/s vs 186.0GB/s)
2048 additional rendering cores
Intel Data Center GPU Flex 140 's Advantages
Released 7 years and 5 months late
Boost Clock has increased by 75% (1950MHz vs 1114MHz)
Lower TDP (75W vs 250W)