Thing is, where I live (Eastern Europe) thanks to crypto-hangover there are some sweet deals for used GPUs. RX570/RX580 costs almost the same ~70 - 100Eur.
One guy near me selling ASUS RADEON DUAL RX 580 OC 4GB GPUs for 85Eur. So, I'm thinking buying it and undervoliting a little bit (if it needed), than buying RX570 for same price.