NVIDIA Tesla M40 's Advantages
More VRAM (12GB vs 4GB)
Larger VRAM bandwidth (288.4GB/s vs 128.1GB/s)
2048 additional rendering cores
NVIDIA Quadro T2000 Mobile 's Advantages
Released 3 years and 6 months late
Boost Clock has increased by 61% (1785MHz vs 1112MHz)
Lower TDP (60W vs 250W)