I plan to purchase a new computer in the nearish future. I have always used nvidia cards in the past but am looking at the amd card and wondering if anyone has any feedback on the using amd cards for everquest.
Both are way overkill for EQ, and will run perfectly well for anything you do in the game. So... you should be looking at which card is better for the other games you play.
AMD Radeon R7 here. No problems and almost no lag observed here. As already noted, EQ will run OK on some really old and underpowered (by today's standards) system.