4 x Vega56 with Vega64 BIOS with clocks 1340/1050MHz @ 900mV, hashrate is ~ 4 x 1.8 Mh/s, power consumption ~= 1050W from the wall.
Same rig with same settings on XMR gives hashrate 4 x 1750MH/s, power consumption ~= 710W from the wall.