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Eyefinity Crossfire Stuttering Resolved !
http://www.wsgf.org/phpBB3/viewtopic.php?f=66&t=23204		 Page 8 of 15
Author:  Wijkert [ 28 Jul 2012, 10:19 ]
Post subject:  @ Haldi. Did you do any
@ Haldi. Did you do any testing since that article has been released?
Author:  Haldi [ 28 Jul 2012, 14:30 ]
Post subject:  Nope! Didn't have a lot time.
Nope! Didn't have a lot time. And now MB is RMA and im running single 6970.
Author:  Haldi [ 14 Sep 2012, 15:11 ]
Post subject:  Okay.... Here some new
Okay....

Here some new Results:
8.982.0.0 driver. (was 12.8 IIRC, with CAP2 12.8 installed)

Tried with 1000mhz core and 1425mhz Vram, and 1800mhz Vram!










Also tried with Vsync enabled at 1800mhz.


And with MSI Afterburner FrameLimiter set to 60
Author:  Wijkert [ 14 Sep 2012, 15:19 ]
Post subject:  Haldi wrote:Okay.... Here
Okay....

Here some new Results:
8.982.0.0 driver. (was 12.8 IIRC, with CAP2 12.8 installed)

Tried with 1000mhz core and 1425mhz Vram, and 1800mhz Vram!

Also tried with Vsync enabled at 1800mhz.

And with MSI Afterburner FrameLimiter set to 60


Is it possible that you forgot to add the results themselves? Would like to take a look at them.
Author:  Haldi [ 14 Sep 2012, 15:33 ]
Post subject:  Hooray, now i cant edit
Hooray, now i cant edit anymore... ^^ they really should fix this!


Here some new Results:
8.982.0.0 driver. (was 12.8 IIRC, with CAP2 12.8 installed)

Tried with 1000mhz core and 1425mhz Vram, and 1800mhz Vram!


No big difference.





Also tried with Vsync enabled at 1800mhz.




Fail!

And with MSI Afterburner FrameLimiter set to 60

https://www.wsgf.org/f/u/contrib/node_gallery_image/23203/Dirt39825Graph.png

https://www.wsgf.org/f/u/contrib/node_gallery_image/23203/Dirt39825.png


Seems like that Frame Limiter is the only way to prevent Micro Stuttering!
But the question is! Do you want limited 35 FPS all the time instead of sometimes 35fps with micro stutter but then again in another scene 50fps and no problems...

I Asked unwinder if he could modify his frame limiter, he refused. He does have enough to do with the rest of MSI Afterburner.
Not sure if he's allowed to or might agree to release the source code for the Frame limiter, nor do i have the knowlede to create a modified self adjusting version myself :(
Author:  Wijkert [ 14 Sep 2012, 16:51 ]
Post subject:  Hmm, that indeed doesn't look
Hmm, that indeed doesn't look promising. I have played with the frame limiter on and two things bugged me. When you drop below the frame limit, microstuttering seemed worse than without. Also even if the games stays at the max framerate all the time, gameplay isn't as smooth as with v-sync enabled. Until they resolve this issue, I will stay with one card what AMD is concerned. A friend of mine might be buying 2x 660Ti’s in the near future. He might let me borrow them to test how bad the microstuttering is in the green camp.
Author:  Haldi [ 11 Nov 2012, 04:26 ]
Post subject:  Re: Eyefinity Crossfire Stuttering Resolved !
phew.... RadeonPro really is a pain in the Ass!
1. Never got it working with any Dx11 game!
2. If you don't reach the set limit you get worse stuttering than witouth! (still have to do some research about that....)

But here you go:

Trine 2
Image
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Trine 2 With Dual Vsync 59FPS
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Bulletstorm
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BulletStorm Dual Vsync 59FPS
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Alien versus Predator
Image
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Alien versus Predator Dual Vsync 59 FPS
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Alien versus Predator Dual Vsync set to 110 FPS (which actually limited to 60 FPS!)
Image
Image

Borderlands 2
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Borderlands 2 Dual Vsync 59FPS
Image
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Borderlands 2 Dual Vsync (Performance Problems stuck at ca 40 FPS.... maybe wrong Crossfire profile?)
Image
Image




So as you can see RadeonPro and Dual Vsync CAN bring a great improvement (in numbers.... about the real feel there wasn't so much difference... and i didn't really check it.)
but if it's not set correctly its more disastre than improvement!
Author:  Haldi [ 08 Jan 2013, 14:17 ]
Post subject:  Re: Eyefinity Crossfire Stuttering Resolved !
Freakin awesome webpage by Benchmark3d!

http://benchmark3d.com/micro-stutter-checker

http://benchmark3d.com/microstutter-cas ... tf-edition

Doing some Tests from Skyrim with only 1 CPU core...
Author:  Wijkert [ 08 Jan 2013, 19:50 ]
Post subject:  Re: Eyefinity Crossfire Stuttering Resolved !
Nice find! Had found it a couple of days ago, but forgot to post it here... :doh:

There is some discussion about if frametimes recorded via Fraps can be accurately when running multiple gpu's. Using it for a single gpu to plot frame latency (aka smoothness) is pretty much the best way though.
Interesting read: http://techreport.com/blog/24133/as-the ... ng-methods
Author:  Haldi [ 08 Jan 2013, 23:35 ]
Post subject:  Re: Eyefinity Crossfire Stuttering Resolved !
No big difference for me!

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