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Old September 3, 2008, 05:41 AM
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Default AA comparison of ATI and NV in games

I find that Atiís AA is better than NV,
but while enjoying a game you may ignore the difference.
Generally speaking, more than 4AA setting in game will be hard to discover the difference, but if you have some patience to take a look, you will find they are not always the same!

I use two computers to test the AA quality of ATI and NV,
but with the same monitor(benq fp737s).
computer 1:
E6300, 2GB RAM, HD4850
computer 2:
E8400, 2GB RAM, MSI 8800GT OC

The games I tested were TES4:OBLIVION and Two Worlds,
AF was set to 8x by driver,and AA set to 2x4x8x,
so I can compare the difference.
Although the drivers of ATI and NV both have advanced settings in AA,
I ignore them. I only test the general settings of AA that everybody may use in game,
and many benchmarks found on www may be the same!

oblivion
2aa


4aa


8aa


two worlds
2aa


4aa


8aa


---------------------------------------------------------------

oblivion


4xaa



8xaa




Two worlds


4aa



8aa



-------------------------------------------------------------------------
-------------------------------------------------------------------------
The following is the AA test of crysis!
Under windows xp sp2, the video quality all set to high.
(Itís a pity I canít use 8xq and 16xq in crysis with my 8800gt,
the AA setting will become 0AA when applied)
ATIís TENT and EDGE AA mode should be switched by driver!
The following is the comparison of 4AA and 8AA,
and you should take a look on the frame of the window.

Original (no AA)


4AA


8AA


-------------------------------------------------------------------------------------------

AA test of facing lightsource
Original ( no AA)


ATI




NV



You can find the variation of FPS by different AA settings.
ATIís box mode has the best efficiency,
but its Tent mode will cause a big drop on FPS,
still it can smooth the edge of the lightsource and other textures perfectly!
NVís 16AA is better than 8AA, but not so easy to make out.
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Old September 3, 2008, 06:11 AM
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Interesting. Usually I don't notice the AA quality in games since I play at such a high resolution (2560 x 1600) but from your photos it looks like there is a pretty clear difference.
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Old September 3, 2008, 06:20 AM
DK2 DK2 is offline
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Excellent work.
Is it really better or just different?
Still, I'm not sure that it would be a deciding factor on a purchase.
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Old September 3, 2008, 06:37 AM
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I would say that the edges are quite a bit smoother in some cases.
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Old September 3, 2008, 12:15 PM
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Definitely a big difference there, cool comparison. But I wouldn't hold it as a deciding factor in a purchase. Price/performance is still key to me. Which ATI has actually been doing a bang-up job of lately. So better p/p and AA... if I was buying a high-end card today, it'd be an ATI me thinks. Nice job
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Old September 3, 2008, 01:06 PM
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Seems like anymore after 4x has diminishing returns.
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Old September 3, 2008, 01:12 PM
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Good comparo.
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Old September 3, 2008, 01:31 PM
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yeah, ATI's AA looks considerably better in some cases. But it's easy to nitpick in a still picture. How noticeable is in-game though?
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Old September 10, 2008, 11:31 AM
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I have another image quality test of nv and ati. This time I select ďsuper sampleĒ in
NVís driver, so it can present the best IQ.
( itís default ďoffĒ by NV driver, and I doubt many benchmarks do use default
AA settings to test game performance)
For ati, I only test its 8aa box mode. It keeps a good balance between performance and IQ for atiís 48xx series, and I think itís IQ is similar to NVís 8xq mode
while NVís 8xq may result in a big drop of performance for modern games.
(mass effect or crysis for example)
I use jpg again for its smaller file size,
but I compressed all original pics(bmp) to a rar file, so you can
download it and compare the difference.
http://www.shareme.tw/file/DownloadRequest.do?fid=I0944352:-du-2f6e686466696c65732f73686172652f6e765f6174695f6161 2e726172


BIOSHOCK
0AA
2AA
4AA
8AA
NV 8AA&8XQ
NV 16AA&16XQ

CRYSIS (scene1)
0AA
2AA
4AA
8AA
NV 8AA&8XQ
NV 16AA&16XQ

CRYSIS (scene2)
0AA
2AA
4AA
8AA
NV 8AA&8XQ
NV 16AA&16XQ

CRYSIS (scene3)
0AA
2AA
4AA
8AA
NV 8AA&8XQ
NV 16AA&16XQ

(the pics of oblivion are not labeled, left is nv, and right is ati)
OBLIVION (scene1)
0AA
2AA
4AA
8AA
NV 8AA&8XQ
NV 16AA&16XQ

OBLIVION (scene2)
0AA
2AA
4AA
8AA
NV 8AA&8XQ
NV 16AA&16XQ

high AA comparison
BIOSHOCK


CRYSIS


OBLIVION



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Old September 10, 2008, 04:20 PM
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Well I think ATI is the winner for picture quality and AA but you probably wont notice it and especially if you are not looking for it.
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