A used RTX 3090 is still the best GPU for local AI in 2026, and it's not even close on value

XDA developers | March 15, 2026, 5 p.m. | Original
24GB of VRAM combined with RTX 5070 performance for $600, anyone?
4 top-tier open-source apps you can self-host I added a $25 HBA card to my home server and went from 2 drives to 8 easily