[reemas]

i'm not sure if i should use none, 2x or 4x when i play XIII the game.

i dont even know what it is and how it effects performace. i did a search but couldnt find much, so now i'm posting. thanks in advance for the help.

[TETENAL]

http://en.wikipedia.org/wiki/Anti-aliasing

The better the anti-aliasing, the lower the frame rate. No harm is done by trying the settings out. Use the one you like the most.

[jamil5454]

Antialiasing reduces the jagged edges you see in games by rendering each scene more than once. Modern antialiasing uses the rotated-grid method which rotates and alters the colors of the original render. In other words, antialiasing slightly "blurs" the frame to remove jaggies. Theoretically, 2x antialiasing reduces performace by 1/2 and 4x by 1/4, but bandwidth and processing enhancements in the GPU and memory controller alleviatge this. The biggest performance hit usually comes from No Antialiasing ---> 2x Antialiasing. In FPS like XIII, antaliasing (or AA) will reduce performance considerably because FPS are generally more graphics card dependent. In RTS games like Warcraft 3, the percentage of performance drop won't be so high since those games are more system dependent.