Original Summary

I built a PSU wattage calculator that picks your CPU and GPU from a 206-part catalog (122 CPUs, 84 GPUs, vendor published watts from Intel ARK / AMD / NVIDIA) and computes the recommended unit size live. How it works: load = your CPU + GPU peak watts (with an OC or power-limit mode factor), plus 35 W platform + your RAM, drives, fans. Target = load x 1.4 headroom. It snaps up to the nearest standard rating from 450 W to 1200 W and tells you the efficiency sweet-spot (PSUs run best around 50-60% load). The honest part: it's an estimate, not a measurement. Modern flagships spike well above their published board power for a few milliseconds, and that's exactly when random load crashes come from. If you see them, step up one size. The tool says this out loud instead of hiding it. It also flags when the 12 V heavy load (CPU + GPU + board + fans) exceeds what a 60% rail share on your unit can actually deliver. Everything runs in your browser. The catalog is a static list shipped with the page, the math runs in the tab, and your parts list never leaves your device. https://appdoesit.com/apps/psu-calculator/ My 9950X + RTX 5090 build computes to the 1200 W end, and the tool's 12 V rail warning on it is the kind of thing I'd have wanted to know before buying. Happy to answer questions about the math :)   submitted by   /u/paq85 [link]   [comments]

  • 情报分类：综合情报
  • 分类依据：内容未命中明确的垂直分类规则，归入综合情报
  • 信息来源：Reddit · SideProject
  • 发布时间：2026/10/13 15:25:43