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How does one get better SLI Performance?

post #1 of 3
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I have been getting very jittery/choppy/shaky and inconsistent framerate since I installed two cards to do SLi (hack). It's worse in some games. When it's on "Nvidia Recommended" settings only one card is mostly used (useless). If I change it to "Force Alt rendering 1" or 2 then it becomes very bad.
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post #2 of 3
You are experiencing microstuttering most likely, some people notice it and some don't. Some games have it worse than others, and other games have almost none.

It is the reason why I stay away from multi-GPU setups, espically in this day and age where a single power GPU will max all games with the exception of stupid high resolutions (2560x1600 and above).

Nothing you can really do but return those cards and get a single powerful card. In my experience a single GPU setup feels much smoother than any dual-gpu setup. I've owned more than 5 single-gpu and dual-gpu setups (both CF and SLI), so my sample size is rather large.


Also: NVIDIA Recommended is usually the setting you want. They have profiles that automatically pull the best rendering method based on the game launched. If NVIDIA Recommended is only using one GPU in the game you are using, there's probably a good reason behind it (IE the game doesn't work well under dual-gpu).
Edited by Murlocke - 5/13/11 at 3:57pm
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post #3 of 3
^while that is true, i think he's getting unusually severe problems. first of all, reinstall ur driver. do not set any thing in nvidia control panel, the driver already enable sli profile for ur games. u just have to enable SLI, then go play. don't mess with rendering settings.
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