It was a technique Nvidia used about 3-4 years ago for x2aa. I believe it was 1st documented by the Hardocp guys when they used to do indepth comparative reviews and then discussed at length here in the core PC forums.
It was a post filter rather than real anti aliasing and NV were marketing...
Anybody noticed that Nvidia's infamous blur filter has gone in 2.35.
All the PS3 games are sharper, crisper but obviously with slightly more noticable jaggies.
Transparancy / Adaptive AA.
With this feature 3D cards have finally past 3DFX AA in terms of quality with performance.
Just a shame ATI haven't added this feature to openGL... but I expect MS have told them that they'll all be sacked at takeover time if they do.
Those AVI's show the problem quite clearly. It would be really interesting if someone could create an AVI (same spot) using 6800 too.
If it's much the same then there's not much to be said but if the 6800 gives a clean image I know what direction my next upgrade will be.
Maybe I'll be able...
I use this openGL renderer http://cwdohnal.home.mindspring.com/utglr/
and use the oldskool mod that then runs Unreal (+ expansions) with all the hi res textures too.
http://www.oldunreal.com/patch.shtml
Operation Na Pali Single player game like Unreal (many say it's better)...
opened up CTO (UK Trade buyers mag) and Sapphire & Realtime Distribution have Tomshardware comments slapped on the face of a doublepage ad:-
"The new performance leader is ATI's Radeon X800"
Together with hardocp
"The X800Pro can easily be called Must Have Hardware by the discerning...
UT1 is brilliant with a R3x0 cards; the Hi res textures update, frames fast enough to have Vsync on, AA/AF at max and the only game I make use of Trueform and it still plays better than UT2004 (none of the fisheye effect when you rotate).