I own a i5 9600k and use it on a Asus Z390 motherboard, that we all know has PCIe gen 3, and i am using a gtx 1660 super right now, and was thinking about getting a RX 6600 XT, but i have heard from a friend that it will run slower than in many tests he has seen, because it only runs with pcie 8x and not 16x lanes that most graphicscards do today, if i run it on my asus motherboard, i hope that i wont have to upgarde my CPU and motherboard to fully be able to use a RX 6600 XT.
so is that true that i will loose alot of performance if i used it on my motherboard???