Why ATI's AA sucks!

[Compddd]

When I get my FX-53 939, Asus A8V, and X800XT PE put together I will run 6xAA and 16xAF on every game I play hehe. Right now I run 4xAA 16xAF on everything I play.

 

[Acanthus]

Originally posted by: Compddd
When I get my FX-53 939, Asus A8V, and X800XT PE put together I will run 6xAA and 16xAF on every game I play hehe. Right now I run 4xAA 16xAF on everything I play.

Appearently you dont play battlefield vietnam or far cry.

 

[KoRn96]

all i have say my friends AA looks way better than my fx 5900 ultra. he gots a ATi 9800pro.

 

[Nebor]

Originally posted by: KoRn96
all i have say my friends AA looks way better than my fx 5900 ultra. he gots a ATi 9800pro.

Yeah...

 

[somekid617]

LOL!! WTF IS LOD!!

 

[Pete]

LOD = LEVEL OF DETAIL!!

 

[SickBeast]

Wow...I just looked at those screenshots and notice NO DIFFERENCE. Maybe I'm missing something. Otherwise, the comments about nVidia having superior AA are FUD.

 

[Compddd]

I play Farcry, it runs fine to me with 4xAA 16xAF at 1024 x768. Gonna crank it up to 1600 x 1200 when I get the X800XT

 

[yhelothar]

sickbeast... wtf i hope that was sarcasm..

 

[BFG10K]

Wow...I just looked at those screenshots and notice NO DIFFERENCE.

Things such as AA, trilinear and AF look best in actual gameplay and screenshots don't really do them justice. If you still want to check screenshots try magnifying them and checking individual pixels.

 

[AnnoyedGrunt]

Well, in the runway shots it is obvious that the NV 4X is better than ATI 4x in some places. Particularly the "tar strips" on the runway. It doesn't look like ATI has used any antialiasing on them at all.

So, that seems to indicate that the NV method does do FSAA in the 4X mode, which means that it doesn't matter if they use RGSS (which only indicates which adjacent pixels they use for AA, not where they apply the AA).

In all the other cases, like the edges of textures, both ATI and NV have similar quality.

Now, in older NV cards, where they used a Square Grid instead of a Rotated Grid, the IQ was not as good as ATI.

In the end though, so much of the IQ debate is subjective (IE: there ARE IQ differences, but which is better is usually opinion since the images are so similar) that it just makes sense to pick the card that is best for your own personal application. Sometimes you just need to forget about which is "best" and realize that there is no best, only "good for what I want to do".

-D'oh!

 

[Pete]

Let's make this clear: both ATi and nV do MSAA, not SSAA, at 4x (nV only does SSAA in 4xS or higher AA modes). The runway differences can probably be attributed to texture filtering, not AA. Neither card can AA textures in 4x mode, and the runway is probably just a texture, so the quality differences must be a texture filtering issue.

 

[BFG10K]

Well, in the runway shots it is obvious that the NV 4X is better than ATI 4x in some places.

That's exactly why I've repeatedly said to use 6xAA on ATi. nVidia doesn't do 6xMSAA which is why ATi's edges will always look better.

 

[yhelothar]

Originally posted by: BFG10K

Well, in the runway shots it is obvious that the NV 4X is better than ATI 4x in some places.

That's exactly why I've repeatedly said to use 6xAA on ATi. nVidia doesn't do 6xMSAA which is why ATi's edges will always look better.

Sure if you love low resolution gaming... :roll:

 

[Pete]

ATi's 6xAA is actually pretty usable--not too much of a performance drop from 4xAA. nV's 8xAA takes a huge hit because it's partially supersampling.

 

[SickBeast]

Originally posted by: virtualgames0
sickbeast... wtf i hope that was sarcasm..

No, it wasn't sarcasm. I didn't see much difference if any. The biggest thing I notice is the color difference.

EDIT: I was looking at the "Thunderbird" screenshot, which shows no difference between the two. The other screenshot did show a clear difference. I apologize for the inaccurate statement.

 

[BFG10K]

Sure if you love low resolution gaming...

I've repeatedly pointed out that the performance drop from 4xAA to 6xAA is quite small. In fact when I ran my tests it was so low at times I questioned whether the control panel was even functioning.