Power Supply Calculator

Pick a GPU and CPU to compute the recommended PSU wattage. TDP values are source-verified; the recommendation uses a load×1.4 headroom (a PSU runs most efficiently at 50–60% load).

Graphics card (GPU)

Processor (CPU)

Extras (optional) Extra SSD HDD AIO cooler Many RGB fans

How it works

Estimated peak load = GPU TDP + CPU TDP + 90W system base + selected extras. Recommended wattage = load × 1.4, rounded up to a standard PSU capacity (500/600/650/750/850/1000W…). Actual draw varies by usage; this is a conservative common guideline.