Hi I’m currently building a new gaming pc and I was looking at graphics cards, I had narrowed it down to either a brand new Rx 570 with 8gb memory or a used Rx 580 with 4gb memory. I’m only going to be playing at 1080p at high to max settings. Which card should I get any input is helpful. The 570 is about $300 (cad) and the 580 is $200 (cad)