I am running a few 3080s and the bespoken 225 Watt is correct. But this is only while mining ETH.
Better you go for a 1500 Watt and up powersource.

In the case ETH mining comes to an end or another coin (with more power usage) with more income shows up,
you can just go on mining and dont crash your rig.

Dont forget that 3080s take over 40 watt out of the riser. This can cause trouble.