"We knew that all older AMD drivers, and some Nvidia drivers would have problems with the game, but we were running well in-house on all of our test systems."
What a bunch of fucking horseshit. I guess all your test-sytems then had NO driver on it that was available to the public at launch? Because nobody with an AMD card had a driver that actually just FUCKING WORKED. So what kind of driver did you have installed? One made with unicorn giggles and fucking fairy dust?
Four straight days of fighting with your shitty fucking console port just to try to get it to look the way it's supposed to and to run well. Yeah, it's all AMD's fault, Carmack.