Will it fit — and what will it cost to run?
Two questions kill PC upgrades: clearance and electricity. WattFit answers both with editable watts, hours, utility rates, and simple length/slot checks. Power defaults come from our dated GPU power table; rates from a U.S. state electricity snapshot.
Useful outputs (not “build guides”)
- Monthly and yearly $ from W × hours × $/kWh
- Full PC load-hours cost (GPU + rest)
- PSU headroom % vs continuous rating
- GPU length/slots vs case allowance
- Undervolt ΔW savings sketch
Undervolt and fit tools are planning sketches — validate stability and measure your case with a tape.