Unfortunately many PC gamers who bought Rage have been experiencing severe texture pop-in, screen tearing, audio stuttering, low framerates, and overall poor performance. Apparently driver issues with certain ATI and Nvidia cards are to blame. id Software's John Carmack Tweeted, "Everyone, make sure you have latest Nvidia/Ati drivers to play Rage."
Here's a video example of the PC issues:
AMD has fallen on the sword and taken the blame for many of the issues, admitting via a Tweet that the current Rage performance drivers were accidentally packed with old OGL files. The company has promised via another Tweet that new Rage drivers with the proper OGL component to be posted later today. When the correct driver is posted you'll be able to find it on the AMD website.
So if you're experiencing these issues don't worry; a fix is on the way. Many of id Software's PC games get Day One Patches and fixes, so this isn't anything extremely uncommon, just majorly annoying.
Are you a PC gamer experiencing rage from the video problems with Rage?
Source: PC Gamer