ExtremeTech shows you how to crank up the image quality of your system:
Both Nvidia and ATI reference drivers provide control panels that allow you to tweak the settings of the graphics card globally, or within specific games. This is why we love PC gaming. There's always something to tweak. Consoles are great, mind you, when you just want to sit down and play at 30–60 frames per second (FPS), but the PC platform affords you the ability to change the experience for the better with just a few clicks of the mouse.
Does a game you love to play fail to offer any form of antialiasing? Override it. Does your machine crank out an older game consistently at over 100 fps? Look for ways to leverage some of that overkill to improve image quality. The graphics control panels--and even some third party applets--are there to help you blast through the quality/performance barrier by bypassing the game's own settings.