NVIDIA Quadro P400 's Advantages
Released 8 years and 7 months late
Boost Clock1252MHz
16 additional rendering cores
Lower TDP (30W vs 600W)
NVIDIA Quadro Plex 2200 S4 's Advantages
More VRAM (4GB vs 2GB)
Larger VRAM bandwidth (102.4GB/s vs 32.06GB/s)