jure97z :
I have i5 4470s, 8gb of ram and a Corsair CX 430W psu. Is that gonna be enough for rx 580 8gb?
Get the Corsair CX450M instead. The Corsair CX 430W PSU you have is low-quality, rated at only 30C oper. temp., has only 3-year warranty, is already discontinued, and only has 1x 6+2pin PCIe power connector. So, chances are, depending on which specific RX 580 model you select, it will require 1x 6-pin + 1x 8-pin *or* 2x 8-pin connectors (though there are some models that may only require 1x 8pin).
The Corsair CX450M is an updated version of the CX/M series, better-quality, 40C oper. temp rating, 5-year warranty, in-production, and has 2x 6+2pin PCIe power connectors.