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Micro Stuttering Solved?

Tags:
  • Graphics Cards
  • Framerate
  • Crossfire
  • SLI
  • Graphics
Last response: in Graphics Cards
January 30, 2012 5:01:22 AM

As I understand it micro stuttering occurs when two cards are placed in crossfire/sli because the framerate is jumping wildly between min and max. Would putting a cap on the max free resources to increase the min thus decreasing the distance between the two?

More about : micro stuttering solved

a c 110 U Graphics card
January 30, 2012 6:43:57 AM

I don't know, never got microstuttering on my system :p 
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a b U Graphics card
January 30, 2012 8:39:26 AM

SLI never seems to get micro stuttering. AMD cards like the 6850-6970 are the biggest culprits, I have two 6950s which only get micro-stuttering in BF3. I think the actual cause is the second card either not processing fast enough, or the data not being transferred fast enough for the first GPU to render it properly. But in general I havent had a problem with it. If you try to force Vsync, you might find it makes a difference, but I couldn't say for sure.
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Related resources
a b U Graphics card
January 30, 2012 9:23:59 AM

microstuttering is simply the result of each video card sending the frame as soon as its done processing it. rather than waiting to put it directly between two of the other cards frames. ill represent this as 1 for card one, 2 for card two and - for time between getting frames.
in an ideal world it would go like this.
1 - - 2 - - 1 - - 2 - - 1 - - 2 - - 1 - - 2 - - 1 - - 2
but in reality it goes more like this.
1 - 2 - - - 1 2 - 1 - - - 2 - - - 1 - - 2 - 1 - - - - 2
those delays between getting a frame gets interpreted as skipping to the brain.
the best article ive seen on this is over at techreport.com
http://techreport.com/articles.x/21516/1
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a b U Graphics card
January 30, 2012 9:26:21 AM

vsync wont make it better it might make it worst though as your lowering the frame rate intentionally and microstuttering is only noticeable at low frame rates.

there is nothing to do about it except for lower settings to get higher frame rates.
Virtu, AMD and Nvidia is working on something that will fix it but it will likely be a couple generations of hardware before this is fixed.
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January 30, 2012 10:42:34 AM

farrengottu said:
microstuttering is simply the result of each video card sending the frame as soon as its done processing it. rather than waiting to put it directly between two of the other cards frames. ill represent this as 1 for card one, 2 for card two and - for time between getting frames.
in an ideal world it would go like this.
1 - - 2 - - 1 - - 2 - - 1 - - 2 - - 1 - - 2 - - 1 - - 2
but in reality it goes more like this.
1 - 2 - - - 1 2 - 1 - - - 2 - - - 1 - - 2 - 1 - - - - 2
those delays between getting a frame gets interpreted as skipping to the brain.
the best article ive seen on this is over at techreport.com
http://techreport.com/articles.x/21516/1

Very detailed data, and interesting but beside the point.
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