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XFX 6990 MICRO STUTTERING IN BATTLEFIELD 3 WITHOUT V-SYNC - Page 9

post #81 of 124
Thread Starter 
Quote:
Originally Posted by Dmac73 View Post

Dual 480s is a totally different league and timeframe from 4870x2.\
OP, reinstall your OS. Period.

i would re-install it if it would FIX my issue..
if not then it was a waste...
dunno what i should do...
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post #82 of 124
Do u have an extra hard disk u can use to install any OS u use. If so do that to experiment quick on any game u got this issue with and if that doesnt work than try to downclock ur gpu to test if it reduces the stutter.
post #83 of 124
Quote:
Originally Posted by Toxsick View Post

i would re-install it if it would FIX my issue..
if not then it was a waste...
dunno what i should do...

9 pages with no fix. Just reinstall. NBD.
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post #84 of 124
Crummy motherboards play a huge role in micro stuttering just so you're aware.

Ever try making a garage door open quickly and quietly with two 1.5HP openers? Literally, it stuttered on it's way up. It's hard to make two objects working parallel 100%
Edited by redsunx - 12/11/11 at 1:35pm
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post #85 of 124
Quote:
Originally Posted by redsunx View Post

Crummy motherboards play a huge role in micro stuttering just so you're aware.
Ever try making a garage door open quickly and quietly with two 1.5HP openers? Literally, it stuttered on it's way up. It's hard to make two objects working parallel 100%

True and also voltages, to high voltage can reduce performance and to low can cause unstability
post #86 of 124
Load temps?
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post #87 of 124
Thread Starter 
Quote:
Originally Posted by redsunx View Post

Crummy motherboards play a huge role in micro stuttering just so you're aware.
Ever try making a garage door open quickly and quietly with two 1.5HP openers? Literally, it stuttered on it's way up. It's hard to make two objects working parallel 100%

Asrock extreme p67 isnt bad.
Lol...

i dont get the stuttering in bfbc2 its an EA/DICE SIDE PROBLEM. crap coding/memory leak, go on.
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post #88 of 124
Thread Starter 
Quote:
Originally Posted by Dmac73 View Post

Load temps?

Load temps xfx6990 80C - 84C
CPU 48C

smile.gif
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post #89 of 124
Quote:
Originally Posted by Toxsick View Post

Load temps xfx6990 80C - 84C
CPU 48C
smile.gif

Atleast the temperatures are not the problem, everything seems normal. Did u also try to push the gpu bus speed with just a few mhz?
post #90 of 124
god, so many uninformed people in here...
The so called "micro-stuttering" is a phenomenon that appears with ANY MULTI-GPU setup.
Basically the frametimes are not constant, they are irregular which means GPU 1 will render the first frame faster while GPU 2 will render the second frame slower, ultimately causing a small 'delay' between frames.

Heres an example in Stalker with a single HD 5850 compared to two 5850's in CF

ms.jpg

As you can see, the single HD 5850 refreshes each frame within 36 milliseconds which is a constant frametime allowing for smooth gameplay.
However, once you put a second card in the micro-stuttering will appear.
One frame is always being refreshed after ~13 ms while the second one however takes around 50 ms simply due to the GPU's having to communicate with each other. So opposed to a constant frametime you will see an almost ~40 ms delay each second frame and THAT is basically the micro-stuttering.. has nothing to do with driver issues, gpu utilization or other funny stuff that has been mentioned here.

And yes, Vsync does improve it because it uses frame buffers which means frames are already pre-rendered and can be output in a constant way. (note it doesnt necessarily fix it, but definately dampens the stuttering thanks to more constant output of frames)

Micro-stuttering is TOTALLY subjective; some people may notice it, others may not.
It may also be worth noting that nVidia has this issue WAY better under control than AMD. The frametimes on a SLI setup are much more constant than a CF setup, see here: http://www.computerbase.de/artikel/grafikkarten/2011/test-radeon-hd-6900-cf-vs.-geforce-gtx-500-sli/20/

Also, it might be worth checking out the attached links below so we can save 9 pages of non-sense next time.

http://en.wikipedia.org/wiki/Micro_stuttering
http://www.tomshardware.com/reviews/radeon-geforce-stutter-crossfire,2995.html

So next time do some research about the product and its related issues that you're buying OP....
Either sell your card and go single-GPU or use Vsync, no driver or OS reinstall will fix this issue.
Edited by toX0rz - 12/11/11 at 2:21pm
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