What PSU do you need for an RX Vega 56?
The RX Vega 56 draws up to about 230W under full load. On its own that only tells half the story — your total system power (and so the PSU you need) depends just as much on your CPU, drives and cooling. This page sizes a supply for the RX Vega 56 paired with a Ryzen 5 2600; if your parts differ, the calculator gives your exact number in seconds.
Paired with a Ryzen 5 2600, this build draws about 400W at peak (230W GPU + 80W CPU + system). A 750W unit runs it at ~53% load. Absolute minimum: 500W.
| GPU RX Vega 56 / 64 | 230W |
| CPU Ryzen 5 2600 | 80W |
| Motherboard + RAM + drives + fans Rest of system | 90W |
| Total peak draw | 400W |
Recommended power supplies
GamerKit may earn a commission from links on this page — at no extra cost to you. We only list gear we'd actually recommend for the spec. As an Amazon Associate, GamerKit earns from qualifying purchases.
FAQ
Is a 500W PSU enough for an RX Vega 56?
It's the bare minimum, but we'd recommend 750W. This build peaks around 400W, and a 750W 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 RX Vega 56?
80+ 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.