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Stock Phenom II 965=GTX 580 SLI bottleneck? - Page 2

post #11 of 56
there will be pronounced bottleneck in most games.
you need similar speed to an i7/i5 9xx/7xx overclocked to 3.8 GHz or more for 2 GTX 580.
as for overall framerate increase, a 2nd GTX 580 will net more fps than an upgrade to i5 2500k since currently with a single GTX 580 he is still GPU bottlenecked.
best option, upgrade to the i5 AND get a 2nd GTX 580 biggrin.gif
Edited by james8 - 2/28/11 at 7:29pm
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post #12 of 56
Id say if he overclocks it a bit, there shouldn't be any issues. CPU bottlenecks are not nearly as prevalent as people on this forum make it seem
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post #13 of 56
Definitely going to be a bottleneck. Even with an overclock there will still be a bottleneck.

Only solution? Buy intel. Hopefully this will change with bulldozer.
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post #14 of 56
there will b a bottle neck as far as max FPS...

but the min FPS will be over 60FPS all the time..

which is all that really matters...

i find this with my 2x480s with my CPU...

i would get the second 580...

the bottleneck will be irrelevant as far as actual game play...

remember.. your screen only ever shows 60FPS...

unless he has a 120Mhz screen.. where in that case it would be 120fps...
post #15 of 56
Thread Starter 
mixed reviews by you guys
anybody has proof or tests?
post #16 of 56
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.
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post #17 of 56
list the game and i can show u my min FPS... (if i have it )

thats about all i can do...

and really... he will see a improvement
post #18 of 56
Quote:
Originally Posted by Capwn;12560993 
If he has DDR3 memory, and his cpu overclocked to 3.5 ghz +, there should be no bottleneck.

Im with cap on this one.
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post #19 of 56
There will be bottlenecking with any cpu intensive game. Still playable but you won't be getting the full performance of those 580's. Seriously wait a month or two for bulldozer to come out and compare that to the 2500k. You are wasting money by using a phenom II at this time with those cards.
Edited by scyy - 2/28/11 at 9:04pm
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post #20 of 56
Thread Starter 
Quote:
Originally Posted by hodgoes2001;12564066 
list the game and i can show u my min FPS... (if i have it )

thats about all i can do...

and really... he will see a improvement

mafia II
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