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High FPS with SLI system however feels less smooth then a single Card,is this normal? - Page 2

post #11 of 27
I had very little ripping/stutter with my 5770's.
I would think dual GF-110's would be much smoother.

SLi 570's are overkill for many games, I would only use one GPU in many cases.
Games like Metro and Crysis should be sweet eye candy though.

Make sure your Vsync is on and verify your GPU overclocks.
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post #12 of 27
Quote:
Originally Posted by Wulfgar View Post
People actually play without V Sync On ? What's the point of having 100 FPS if you get screen tearing lol...
I agree with you %100 about V Sync.... I shut it off on a few games to see what it was like without and it gave me a headache lol.
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post #13 of 27
It's because of microstutter why I refuse to even try a dual GPU setup.
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post #14 of 27
Yes its called micro stutter.
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post #15 of 27
When you get down into the lower FPS ranges (often the delineation is around 35-40fps), multi-gpu doesn't 'feel' quite as smooth as a single card because of the micro-stutter that's fairly common w/multi-gpu becomes much more noticeable at low FPS.

Addressing a couple of other issues you mentioned:
1)Cut scenes often really only properly use one GPU.
2) Mafia 2 has bad scaling in SLI because of the PhysX implementation, so what you see is not unusual. Splitting up the SLI set and running it w/one of your cards dedicated to physX will often provide a smoother experience on this game, even if FPS is slightly lower on average.
Edited by brettjv - 2/7/11 at 2:18pm
    
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post #16 of 27
Quote:
Originally Posted by amstech View Post
I had very little ripping/stutter with my 5770's.
I would think dual GF-110's would be much smoother.

SLi 570's are overkill for many games, I would only use one GPU in many cases.
Games like Metro and Crysis should be sweet eye candy though.

Make sure your Vsync is on and verify your GPU overclocks.
I had 5770s for a while too, I think it was more an issue of the framerates not exceeding 60 or if they were they werent' exceeding it by much.
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post #17 of 27
Thread Starter 
Thanks guys for the helpful comments, yeah micro stutter it is then, guess I'll just live with it.
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post #18 of 27
Quote:
Originally Posted by Greatskeem View Post
Thanks guys for the helpful comments, yeah micro stutter it is then, guess I'll just live with it.
FYI it's possible to empirically test for micro-stutter, and not terribly difficult to do. If you're interested, let me know and I'll tell you how to do it.
    
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post #19 of 27
SLI (can) double framerate, but the latency will still be the same.
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post #20 of 27
Quote:
Originally Posted by brettjv View Post
FYI it's possible to empirically test for micro-stutter, and not terribly difficult to do. If you're interested, let me know and I'll tell you how to do it.
I am actually interested in that to test on my new crossfire setup. Enlighten me please!
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