Now many 470 4GB video cards are selling for $ 100. Now it is better to buy a used 5600xt for 550 dollars and get more profit and and less power consumption than from 5x474.
Some are still getting 28MH per second out of their RX470 4gb memory using lolminer, I have a friend who still use 12x RX570 4gb and it's still hashing very well, can a RX5600XT do 28MH in 12 places? I don't think so
It's becoming a pain in the ass to mine on a rx580 4gb memory gpu right now, I'd rather go for RX5600XT than the outdated cards, just imagine you wake up one day and the rx580 4gb and rx480 4gb stop working, the lolminer will only keep them alive for short period of time only