So you can see the difference first hand, I have linked 3 images from Dragon Age Origins. I have a link to one with no AA, one with MSAA and another with SSAA.
NO AA - http://img8.imageshack.us/i/noaa.jpg
Notice the Aliasing around the body and sword.
MSAA - http://img704.imageshack.us/i/msaaj.jpg
Notice how around the outside of this character, this is no longer any aliasing, around the legs is most obviously better than the first image. However, notice the sword that covers over the body area. It's horribly aliased dispite having MSAA on.
SSAA - http://img341.imageshack.us/i/ssaaq.jpg
Notice how the whole image is smooth, including the sword that overlaps the body.
When there is motion, which is hard to show without a really high quality FRAPs video, the aliasing is far more pronouced, as the jaggies start shimmering up and down the edges. This effect also effects the small plates all over the armor, but is hard to pick up in a single image.
edit: sorry, had technical issues
NO AA - http://img8.imageshack.us/i/noaa.jpg
Notice the Aliasing around the body and sword.
MSAA - http://img704.imageshack.us/i/msaaj.jpg
Notice how around the outside of this character, this is no longer any aliasing, around the legs is most obviously better than the first image. However, notice the sword that covers over the body area. It's horribly aliased dispite having MSAA on.
SSAA - http://img341.imageshack.us/i/ssaaq.jpg
Notice how the whole image is smooth, including the sword that overlaps the body.
When there is motion, which is hard to show without a really high quality FRAPs video, the aliasing is far more pronouced, as the jaggies start shimmering up and down the edges. This effect also effects the small plates all over the armor, but is hard to pick up in a single image.
edit: sorry, had technical issues