Two-step sizing

Total the CPU and GPU peak draw (TDP) and add about 150 W for the rest of the system. On top of that, keep 20-30 % in reserve for efficiency and later upgrades.

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Efficiency tier and plugs

Bronze is the 80 PLUS tier to start from: 82-85 % efficient in the 115 V test. Newer GPUs call for a 12V-2×6 (12VHPWR) plug. Our configurator hides underpowered units for you.