PSU Calculator for Graphics Cards

Work out the power supply wattage your graphics card and CPU need, with safe headroom – or check which GPUs your existing PSU can run.

Graphics card (GPU) Processor

SSDs / hard disks Case fans

Power supply you already have (W, optional)

How it works

Pick a GPU to get a recommended wattage, or enter the power supply you already own to see which GPUs it can run.

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