NVIDIA Quadro P400 's Advantages
Released 8 years and 6 months late
Boost Clock1252MHz
More VRAM (2GB vs 1024GB)
128 additional rendering cores
Lower TDP (30W vs 100W)
NVIDIA Quadro FX 3800M 's Advantages
Larger VRAM bandwidth (64.00GB/s vs 32.06GB/s)