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Stock Phenom II 965=GTX 580 SLI bottleneck? - Page 3

post #21 of 56
Quote:
Originally Posted by robbo2;12564055 
I owned SLI 480's with a 965 clocked at 4ghz and there was a massive bottleneck. The second card was pretty much a waste of time. Switched that PC to an i7 an it really blew my mind the difference.

^X1000. I dont know if its the chipset or CPU itself, but man are AMD boards bad at running SLI.

Even two GTX 470's bottlenecked my 955 which was clocked at 4.00GHZ. The second GTX 580 will simply be a waste of time like Robbo said.
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post #22 of 56
Quote:
Originally Posted by AK-47;12564160 
mafia II
black ops
wow
css
crysis

LOL.
OK I can answer this: MOST GAMES ARE GPU DEPENDENT. Why people on here are willing to overlook that is beyond me. How many people are going to notice a 10 or less FPS difference without FRAPS telling them?

For Crysis, it is GPU dependent. Always has been and always will be.
For CSS with current GPUs it doesn't matter. I've maxed it out with an old 8800GTS(64SP model) on a conroe dual core running 2.4GHz.

None of these games should be worth worrying about a bottleneck with because you'll likely be still above 30+ FPS.

EDIT: I will agree that SLI ends up pretty bad on AMD boards though. frown.gif
     
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post #23 of 56
Yes, I too agree that SLI + AMD might not yield the best results. It can be helped some by getting the CPU clock above 4 GHz and the memory controller above 2600 MHz, but I think the chipset could be limiting as well, unfortunately.
    
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post #24 of 56
An i7 930 at 4.5 ish fully removes bottlenecking of 2 5870s in xfire. Having 580s in SLI with a 965 is like buying the smallest size condom for a black man.... its just not going to work biggrin.gif
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post #25 of 56
Quote:
Originally Posted by Rookie1337;12564264 
LOL.
OK I can answer this: MOST GAMES ARE GPU DEPENDENT. Why people on here are willing to overlook that is beyond me. How many people are going to notice a 10 or less FPS difference without FRAPS telling them?

For Crysis, it is GPU dependent. Always has been and always will be.
For CSS with current GPUs it doesn't matter. I've maxed it out with an old 8800GTS(64SP model) on a conroe dual core running 2.4GHz.

None of these games should be worth worrying about a bottleneck with because you'll likely be still above 30+ FPS.

EDIT: I will agree that SLI ends up pretty bad on AMD boards though. frown.gif

From personal experience with crysis an sli 480's with AMD chip I gained a whole all mighty an massive 3fps with the second card.
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post #26 of 56
http://benchmarkextreme.com/Articles/GTX%20480%20%20Radeon%205970%20CPU%20Bottleneck/P2.html
ridiculous bottleneck with a stock i7 even in GPU demanding games like Crysis.
again, i7 9xx/8xx or i5 7xx at 3.8 GHz is the power needed to feed those GPUs.
btw those are GTX 480s being tested. GTX 580 will further be bottleneck by CPU.
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post #27 of 56
Quote:
Originally Posted by koven;12564364 
lol , i think it'd be more like buying extra large condoms for an asian man

hahahahahahahahaha
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post #28 of 56
Quote:
Originally Posted by AK-47;12564160 
mafia II
black ops
wow
css
crysis

I have Mafia II, CSS, and Crysis

i will run some tests tonight...

Also SLI on the AMD chipsets performs really well with SLI...

it runs both cards maxed... with about 80-97% performance increase in different games over one card...

ALSO... PEOPLE WITHOUT A AMD CHIP.. DON"T SAY HOW IT PERFORMS
post #29 of 56
Quote:
Originally Posted by koven;12564364 
lol , i think it'd be more like buying extra large condoms for an asian man

Hey uncalled for! If I could show you mine, you'd be like dayuuuum..... That's really tiny.
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post #30 of 56
Quote:
Originally Posted by james8;12564365 
http://benchmarkextreme.com/Articles/GTX%20480%20%20Radeon%205970%20CPU%20Bottleneck/P2.html
ridiculous bottleneck with a stock i7 even in GPU demanding games like Crysis.
again, i7 9xx/8xx or i5 7xx at 3.8 GHz is the power needed to feed those GPUs.
btw those are GTX 480s being tested. GTX 580 will further be bottleneck by CPU.

LOL. Another benchmark that shows little improvement after a certain level of OCing.

And again notice how the FPS are still above 30+FPS? If you're not running FRAPS and really looking most people aren't going to notice it. The closer you get to 60 the less you'll notice it.

Finally, the big thing is the pain of SLI/XFire for driver/glitches/stuttering. No one mentions that and frame fluctuations either?
     
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