Observed arrival · 2026-11-12
WattWise Tools separates minimum PSU wattage from the efficiency-sized pick
A free browser-based toolkit for PC power-supply sizing, GPU and CPU power references, electricity costs, UPS runtime, and portable power stations.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- PC builders, UPS shoppers, and portable-power users
- Worth noticing
- The example keeps AMD's published 750 W system minimum in its own box beside the 650 W minimum and 1,000 W efficiency-size estimates.
Field notes
The PSU method separates a gaming profile, which uses CPU base power and rated GPU board power, from a power-limit profile that uses both components' ceilings; the site says it does not present intermediate values as lab traces. Its GPU pages are described as including three CPU pairings, connector budget, and a vendor system minimum when published. For electricity estimates, visitors can enter a rate or use the cited US state-average table.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue