4 articles · newest first
Two used RTX 3090s give you 48GB of VRAM for a third of a 5090's price — so is a dual-GPU build the smart move for local AI? The honest math, whether models really split across cards, and the power-and-complexity costs the sticker price hides.
Tensor · Sep 22 · 8 min
A used RTX 3090 gives you 24GB for ~$700–1,000 and runs the same models as cards costing 2–6x more. My honest used-market value pick for local AI — with the buying risks spelled out and current prices cited.
Voltage · Sep 22 · 8 min
At ~$4,600 for 32GB of VRAM, the RTX 5090 is either the only card that makes sense — or a tax on headroom you'll never use. An honest, VRAM-first buy call with the cheaper alternatives priced in.
Tensor · Sep 22 · 8 min
Copilot+ 'AI PCs' have a dedicated NPU chip — but here's the catch nobody advertises: it can't run local chatbots. A cheap old GPU runs them 10x faster. Here's the truth.
Voltage · Aug 3 · 10 min