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MSAA 4X vs. AAA and PhysX?

post #1 of 9
Thread Starter 
After running some Metro 2033, and trying a bit of settings I was wondering what the difference between MSAA 4X and AAA.

With AAA I get:
Average Framerate: 66.33
Max. Framerate: 232.61
Min. Framerate: 9.18

With MSAA 4X I get:
Average Framerate: 54.33
Max. Framerate: 221.53
Min. Framerate: 6.64

And with PhysX enabled and AAA I get:
Average Framerate: 46.00
Max. Framerate: 309.50
Min. Framerate: 6.90

Questions are, Whats the difference between MSAA 4X and AAA, and is PhysX worth it? The performance drop seems to be a lot.
Is there anything I can do to bring up my FPS?

NOTE: These are all on stock clocks.
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post #2 of 9
Physx is only worth it if you have it running on CUDA TBH. If you're just using the CPU then it's not worth the performance drop. The difference between MSAA 4x and AAA is perceptual. If you think it looks too jaggy on AAA, use MSAA. If the performance hit is too big for you with MSAA, use AAA.


Also, your minimum framerate is alarmingly low for 6950 XFire
 
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post #3 of 9
Haha, i'm doing the Metro benchmark test at the moment and found this thread looking for those answers too. (Im doing it to see just how much of a boost i get between a 9400GT and a GTX560 that im gettting this wednesday).
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post #4 of 9
Quote:
Analytical Anti-Aliasing (Abbreviation: AAA)

This version of anti-aliasing is done using mathematical analysis to avoid jagged lines around an object by covering the lines with another line of pixels.


Multisampling Anti-Aliasing (Abbreviation: MSAA)

This is a more efficient improvement of SSAA, due to there being large performance issues as the resolution gets higher, to which MSAA does the same thing as SSAA without the large performance hit.

Source: http://www.overclock.net/graphics-cards-general/999466-faq-graphics-terminology.html

Up to you what you want to use. MSAA should look a bit better, but it depends if your eyes will notice the difference or not. Since you are using AMD cards, you should try using MLAA as well wink.gif
    
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post #5 of 9
Thread Starter 
Quote:
Originally Posted by MetalBeerSolid;13260963 
Physx is only worth it if you have it running on CUDA TBH. If you're just using the CPU then it's not worth the performance drop. The difference between MSAA 4x and AAA is perceptual. If you think it looks too jaggy on AAA, use MSAA. If the performance hit is too big for you with MSAA, use AAA.


Also, your minimum framerate is alarmingly low for 6950 XFire

That's what I thought too, but Im assuming that it was only for that one frame, and when I look at other benchmarks for 6950's Xfire I don't see much difference between their results and mine.

But do you have any tips for increasing the minimum framerate?

AND +rep to everyone who posted, thanks for the info.
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post #6 of 9
Well if it was just for a second, you should be fine.
 
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post #7 of 9
Quote:
Originally Posted by MrAlex;13264429 
Source: http://www.overclock.net/graphics-cards-general/999466-faq-graphics-terminology.html

Up to you what you want to use. MSAA should look a bit better, but it depends if your eyes will notice the difference or not. Since you are using AMD cards, you should try using MLAA as well wink.gif
[/FONT]

Thanks bro.
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post #8 of 9
SSAA > MSAA > AAA

IMO: 4x MSAA is the best performance/quality ratio on 1920x1080 or higher resolutions. The difference between 4x SSAA or 8x MSAA is pretty much not noticable during normal gameplay, but will halve your frame rate in some games. You will only notice it if you sitting there staring a fence or a wire while slowly moving your camera, and it will be VERY minor.

Also SSAA can sometimes make textures more blurry than MSAA. Do a google on it, it's pretty noticable on some games.

I force 4x MSAA and 16x AF in CP, then just never deal with them. Leave them off in the actual game.


BTW: I wouldn't even consider using AAA unless my FPS was terrible. On your setup you should be fine using MSAA.
Edited by Murlocke - 4/26/11 at 2:59am
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post #9 of 9
Metro unfortunately doesn't run as good on ATi/AMD cards as it does on nVidia based solutions. Also, PhsyX runs best on nvidia since they own that physics engine. If you have a powerful enough CPU the difference can be pretty small. I ended up playing the game leaving the physx on. I read that Metro will just offload the Physx instructions to the CPU if you have it on and a non-physx enabled card is in use.

Also, as I think someone else mentioned, try turning Morphological AA on in your Catalyst Control Center. I've been leaving it on and played Metro with it on. I left metro on AAA and used MLAA in the control panel and it worked out nicely.
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