I have both RX 580 MSI Armor X OC and RX 580 Gigabyte AORUS.

My sweat spot is with TeamRedMiner 0.8.0
core 1150@825mV
mem 2150@800mV
62-64W reported in HiveOS (probably something like 110W at wall)

31.15 MH/s per GPU

I'm glad with it, because of the low power and low temp for a really nice Hashrate