I am about to flick the switch on the new iMac purchase 
My main concern is regarding graphic performance in games so here is the big question: Which of the 2 would perform better, Radeon 560 driving the 4k on the 21.5 or the Radeon 570 driving the 5k on the 27....
My main concern is regarding graphic performance in games so here is the big question: Which of the 2 would perform better, Radeon 560 driving the 4k on the 21.5 or the Radeon 570 driving the 5k on the 27....