Recommended power supply
What PSU does the Arc A770 need?
The Arc A770 needs a 450W power supply (with headroom). See live used prices across 7 eBay markets.
✓ 450W PSU recommended
Power requirement
Spec
Arc A770Power draw
225W
Live prices
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Common questions
A 450W PSU is recommended for a typical build using the Arc A770 (which draws about 225W), leaving ~30% headroom for the CPU and other components.