Recommended power supply
What PSU does the RTX 3090 need?
The RTX 3090 needs a 650W power supply (with headroom). See live used prices across 7 eBay markets.
✓ 650W PSU recommended
Power requirement
Spec
RTX 3090Power draw
350W
Live prices
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Common questions
A 650W PSU is recommended for a typical build using the RTX 3090 (which draws about 350W), leaving ~30% headroom for the CPU and other components.