no it s not you need 1200w (undervolt also)
i have 5x on 1000w they undervolt, not sure anymore how much it was but it was close to 1000w on eth was dualmining i think, now i remove dual because i keep my ether
1000W for 6 GPU is enough. With proper undervolting absolutly no problem.
right i check my ring undervolt it s using 752W for 5x 570 on ether
but if you do dualmining it s use up to 1000
Is it more profitable to dual mine?
yes it is (if you don't count electricity cost), but not all days, if you do multi algo and auto exchange,
but if you keep your coins to sell later than no it s not
no it s not you need 1200w (undervolt also)
i have 5x on 1000w they undervolt, not sure anymore how much it was but it was close to 1000w on eth was dualmining i think, now i remove dual because i keep my ether
1000W for 6 GPU is enough. With proper undervolting absolutly no problem.
right i check my ring undervolt it s using 752W for 5x 570 on ether
but if you do dualmining it s use up to 1000
You could undervolt more. My 5x570 are consuming 530w at the wall (eth) Doing 28Mh/s each. The cpu/board/ram alone consumes ~70w

ok but i did not really try to get lower, what speed you running at and what timming you used ?
530w is impressive
i did not lot of test on rx570 because my rx470 i could not undervolt more so i just keep same voltage on rx570 and clock because it s mostly the same gpu