What PSU do you need for an Intel Arc B580?
Recommended PSU
650W · 80+ Bronze or Gold
Paired with a Ryzen 5 5600 / 5600X, this build draws about 356W at peak (190W GPU + 76W CPU + system). A 650W unit runs it at ~55% load. Absolute minimum: 450W.
| GPU Intel Arc B580 | 190W |
| CPU Ryzen 5 5600 / 5600X | 76W |
| Motherboard + RAM + drives + fans Rest of system | 90W |
| Total peak draw | 356W |
Change the CPU, drives, fans and overclock for a precise number.
Recommended power supplies
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FAQ
Is a 450W PSU enough for an Intel Arc B580?
It's the bare minimum, but we'd recommend 650W. This build peaks around 356W, and a 650W unit keeps it near 55% load — the efficiency sweet spot — with headroom for the GPU's transient spikes.
What efficiency rating should I get for an Intel Arc B580?
80+ Bronze or Gold. It's the best balance of price and efficiency for a build this size. Never pair a good GPU with a cheap unrated PSU.