570 and 580 are good after VEGA or need to wait for the beginning of June, when will the first test of VEGA in mining?
VEGA isn't worth for ETH or XMR minings same as FURY I would say.
Will it work cross brand? not sure it is working on Asus Strix?
Don't use that BIOS! Make your own. PM me I can help you with mod, or I can mod it for you.