The AMD card thing is false, I'm playing with an AMD Radeon card right now. The requirements are fairly light, to be honest; even with an older card like the R7 260X I can run it with a near smooth 60FPS on the highest graphics setting, if I had a better processor I would probably be running it at 60FPS without any stutter.
So, in short, as long as you have a fairly modern GFX card and a decent CPU you can run it with little issue. It doesn't consume a great deal of RAM either.
The "game breaking issue" with AMD cards is probably just out of date drivers or something of that nature. You should, at the very least have driver version 16.6.