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[Toms] Micro-Stuttering And GPU Scaling In CrossFire And SLI - Page 5

post #41 of 177
Maybe I'm a fool, but I never noticed microstuttering when I had gtx 460 sli or now with 6950 cf. The only time I've seen anything that might be what you would call microstutter is with Assassins Creed Brotherhood.
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post #42 of 177
Quote:
Originally Posted by sid0972 View Post
why do you say that?
Because AMD dual GPU solutions were doing considerably worse than NVIDIAs, and they were testing on a board with an NF200 chip for crossfire, or with dual gpu cards that used simialr PCI-E bridges to connect the GPUs.

Of course this wouldn't explain why trifire fixed the problems.

Quote:
Originally Posted by pursuinginsanity View Post
I have yet to encounter "microstuttering" with my 460s. Had them.. 8-10 months I guess.

There was a thread just a few ago where a guy was asking which was less prone to MS.. Nvidia or AMD, everyone told him AMD. Perhaps they should read this article.
I had a pair of 460 1GiBs in SLI and never experienced any stuttering issues either, and I'm pretty sensitive to this sort of thing.

Quote:
Originally Posted by Kasp1js View Post
Not sure why they tested 6870 tri/quad-fire, considering the only way to achieve that is by using a powercolor 6870x2. Seriously doubt that drivers are optimized for such systems.
Because they had the cards and the results were noteworthy.

Anyway, AMD needs to allow more user control over Crossfire profiles.

Almost any game can be made to work reasonably well with SLI because the end-user can build a profile for it. Crossfire is much less flexible.
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post #43 of 177
if nvidia kept 3dfx's sli there would be 0% Micro-Stuttering and no need for sli mobo and driver hacks

but then we would have to have 100% identical cards, even down to the BIOS and memory type and timings
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post #44 of 177
Quote:
Originally Posted by ZealotKi11er View Post
What are the frames like? i a trying to get a second hd 6950 too.
I got about 70-75fps while not doing much, during shooting my usage dropped quite a bit and I got down under 50fps with less than 75% usage often.

I am bottlenecked by my i5-750 @ 4.0GHz >_<
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post #45 of 177
Quote:
Originally Posted by Arni90 View Post
I got about 70-75fps while not doing much, during shooting my usage dropped quite a bit and I got down under 50fps with less than 75% usage often.

I am bottlenecked by my i5-750 @ 4.0GHz >_<
I should be fine with 920 @ 4.4Ghz HT?
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post #46 of 177
Quote:
Originally Posted by Arni90 View Post
I got about 70-75fps while not doing much, during shooting my usage dropped quite a bit and I got down under 50fps with less than 75% usage often.

I am bottlenecked by my i5-750 @ 4.0GHz >_<
Dang, I hope BF3 takes advantage of more cores like BFBC2... if not my AMD processor is doomed!!
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post #47 of 177
Quote:
Originally Posted by ZealotKi11er View Post
Well yes if you get to mid range cards for CF is not a good idea in the long run. The only reason people CF is to get more performance and thats the only way.
Ehhh yeah. Long run, probably not a good idea. I got the first 6850 as a Christmas gift and the second with my own money. And I don't feel too bad because, especially right now, the CF6850s about match the 580 but are much much cheaper. I suppose that cheaper is the heat and noise though :/. Well, we learn.
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post #48 of 177
I don't have any micro stutter or gpu scaling. I decided to go with a gtx 460 sli setup compared to a 480 because they run cooler, quieter, and is about 20% better OC'd. Only problem is games that don't have the driver support for multiple GPU's. other than that, if you have a good sli board that allows 8x-8x pcie bandwidth and at least 1 space in between the cards, then for sure go for the multi gpu setup.
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post #49 of 177
went from 5850 xfire to 6950 xfire both had MS. 5850 xfire MS was the worst it made 80 fps look like 40 fps. With my current setup I can still see MS depending on the game but it's not as bad as the previous amd cards i had.

I remember reading somewhere about a program to measure microstutter by using fraps benchmark output. Would be interesting to see results for the people who don't notice microstutter and also show MS on different hardware setups.
    
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post #50 of 177
Quote:
Originally Posted by wuyanxu View Post
i think the point of this article is that multi-GPU really only make sense on ultra-high-end builds where single fastest card still isn't fast enough.
Not sure where you're getting this from. I get just over gtx 580 performance and I only spent 260 dollars after rebates.

Microstuttering is a non-issue because I literally haven't seen it in one game I've played.

There's a test that was done by an OCN user that showed empirically that a SINGLE 5870 had more microstuttering than a 5970. Microstuttering isn't only a multi-gpu issue, and to be honest it's not an issue at all in my case. I'll do some digging and find that test
Edited by xPrestonn - 8/22/11 at 1:26pm
    
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