Builds / $50k tier
The home datacenter: local AI under $50k
Four fans of consequence. A silent 512GB frontier box, or four RTX 5090s that generate video while they chat. At this tier the question is not what can it run: everything runs. The question is what you will build with a private datacenter that draws less power than a space heater.
The candidates
The quad 5090 server rig
$7,996
Four RTX 5090s: 128GB of VRAM and 7,168 GB/s of aggregate bandwidth, for people who know what a power budget is.
Technical difficulty: 4/4 · server room
The $30k question
$11,998
The budget from the 'Mac Studios or Spark?' thread: one 512GB Mac Studio, the big models, no cloud bill.
Technical difficulty: 2/4 · seat and go