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Crossfire Microstutter

post #1 of 4
Thread Starter 
Before you start bashing me for having a x16/x4 crossfire, i never intended to have Crossfire, but it just so happened. But i guess i am pusing it further with mismatched cards.

My mobo has 1xPCI-E x16 @ x16 and 1xPCI-E x16 @ x4. The 5870 is in the x16 speed slot obviously, while the 5850 in the x4 slot.

I am experiencing micro-stutter, or at least i think it is. Programs such as FRAPS tell me i have high FPS, however games feel sluggish as if i'm below 30FPS. Enabling V-Sync fixes the problem somewhat but i have a bit of input lag, i.e mouse turns a few milliseconds slower and I haven't crossfire just so I enable VSync.

5850 was running at 99% GPU usage, while the 5870 at 77% or so.

I am running 11.5 i think with the latest or previous version of AMD CAPS.

The problem had occurred in BF3 and Crysis 2 but these are the only games i've tried it on.
Edited by farmdve - 11/23/11 at 8:31am
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post #2 of 4
Is there a question in there, because I don't think there's anything you can do besides getting a proper board?
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post #3 of 4
Thread Starter 
I just updated my drivers to 11.11a and reinstalled 11.11 cap2 profiles, and i felt just a small (like 1-2%) improvement, but it was still there.
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Hard DriveOptical DriveOSMonitor
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post #4 of 4
You can try using fps limiters (console commands or programs like bandicam/dxtory) to see if it helps with the microstutter. The x4 lane also might not be optimal and could cause bad scaling and more stuttering.
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