Can someone tell me the differences between the two and how much differences they're between having them on full blast and turned off? How much performance they rob from a system?
I think this is probably because it's more intensive on the GPU. My recommended settings are based on my 6800GT, which I run with 2x FSAA, and 8x AF. I get the best picture quality vs performance hit on this setting. It's probably best to experiment, using your favourite game. Or pick a game you have which has the highest recommended specifications. I run all my games in 1024x768 by the way. Also if you do a few google searches you may find other people who have tested with your particular graphics card... and you can try to mimic their settings. Hope this helped!