Be aware that the PC version has a serious texture popping issue. I've yet to read someone state they DON'T have this problem, no matter the hardware:
BTW, and here's the extent of your in-game graphics options:
The game is designed to set its quality settings automatically relative to your hardware capabilities, but this very rarely works well in practice and also doesn't account for people like me who prefers a lower, but still playable frame rate in exchange for higher quality graphics.
Anyways, sounds like the game was designed for consoles first anyway (at time of writing the FOV can't even be changed despite someone finding out how to enable the console). Way to go Carmack.