Find the right power supply for your build. Select your CPU, GPU, storage, and other components to see peak system draw, recommended PSU wattage, and headroom at each efficiency tier.
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CPU
GPU
Additional components
10W
0W
0W
6W
0W
0W
6W
12W
W
Peak draw
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Min recommended
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Sweet spot
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Power breakdown
Estimated peak draw—
PSU size comparison at your load
PSU wattage
Load %
80+ tier sweet spot
Verdict
80 Plus efficiency curves peak at 40–50% load for Gold/Platinum/Titanium units. Running below 30% or above 80% reduces efficiency.