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poor scaling sli 670s - Page 2

post #11 of 26
really sounds like a driver issue
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post #12 of 26
Quote:
Originally Posted by powahlam View Post

what drivers are you using ? tryed switching sli bridge to different slot but kinda the same usage on bf3 for both cards never both go above 75% gonna try 306.97

I'm using 306.97 -- always seem to have the best luck here with WHQLs.
post #13 of 26
If changing drivers doesn't work, try testing each card individually and make sure each performs like a single 670 should.
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post #14 of 26
Thread Starter 
306.97 seem to be better but on big maps like gulf dps dips to mid 40s =\ and usage for both cpu are never both above 70%. However on other maps like seine or metro usage seems more pegged near the 95% ratio gonna try metro and other games
post #15 of 26
Thread Starter 


here's a bf3 screenie w/ fps dip to mid 40's and low usage 306.97 both gpu's clocked too 150/470
post #16 of 26
I would test each card individually at this point. If each card performs like a 670 should on objective benchmarks then at least you know SLi is the issue and not something else.
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post #17 of 26
Thread Starter 
i guess ill test the new card i got tomorrow individually, just tried guild wars 2 metro2033 and Batman AC. Guild wars 2 was horrible metro2033 pegged usage at almost 100% now for both cards but avg fps was near 50 everything on max 1440p. AC seem to work fine too just problems in BF3
post #18 of 26
Check your BF3 profile in nVidia Control Panel to make sure everything is set to default.
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post #19 of 26
Online games are famous for GPU usage issues (and very often it's related to CPU-bottlenecking), and single-player games run with less than full usage in many cases as well. GW2 and Batman AC are both also famous for not showing full usage on teh GPU's.

You're basically stumbling across the gamut of 'worst case scenarios'.

You've already said Metro maxes out the cards, which is what should happen, so that's a good sign. I suggest checking your 3dMark11 and Heaven scores, making sure they're in line with what they should be for your setup. If all those tests seems in line, then I wouldn't worry about it ... in all likelihood, you're getting what you 'should' in terms of FPS in everything else as well.

Seriously, people have come onto OCN fretting over their GPU usage in BF3 EVERY SINGLE DAY for the past year, and for a year before that, they did the same for BFBC2.

I often wish GPU Usage % was never put into the overclocking programs ... less than 99% usage does not necessarily mean anything is 'wrong' with one's system thumb.gif
Edited by brettjv - 11/27/12 at 10:30pm
    
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post #20 of 26
Actually, for almost every game for people which uses 670 SLI the usage on both won't be 99% all the time, Borderlands 2 and Battlefield 3 (multiplayer) has poor GPU utilization. It's not bottleneck, since I've been seeing people reporting this with i5 2500k, i7 2600k (me) and i7 3930k and always with 4.5Ghz more OC. So I think it's normal to Nvidia not make full usage in both cards in almost every game. Unfortunatelly mad.gif
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