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Minimum CPU for GTX 580 SLI?

post #1 of 6
Thread Starter 
I've done a lot of searching to try to determine whether an i7-920 running at 3.8GHz would be sufficient to get decent performance out of a pair of GTX 580s (triple display surround).

Has anyone done any objective testing?

I'm trying to determine whether or not to upgrade to i7-2600k before I go SLI.

Any input appreciated, thanks!
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post #2 of 6
Of course, it's plenty of power
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The Ancient
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post #3 of 6
on that res

I dubt that even aoverclock to 4.5 will gain you more then 1-2% increase

you have no bottle neck on that speeds...

its perfect for those 2 GPUs


even on FHD res its still plenty of power to have max performance from those 2 GPUs
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My build :)
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little sis
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CPUMotherboardGraphicsRAM
I7 2600K @ 4.9 1.41v Z77 Gigabyte G1.Sniper 3 (Gigabyte P67 UD7 old) Gigabyte GTX580 SLI 2x4GB HyperX Fury  
Hard DriveHard DriveCoolingMonitor
crucial mx100 256GB 3x1TB WD black rasa block + 2xGTX360 rad's + 2EK waterblocks DELL P2414H 
PowerCaseMouseAudio
corsair 1200AX HAF stacker G400,Performance MX, Roccat Kone XTD beyerdynamic DT 770M 
CPUMotherboardGraphicsRAM
intel core i7 920 gigabyte x58 extreme integrated water cooling nvidia gtx285 2GB 3x2GB Kingston 1333mhz 
Hard DriveCoolingOSMonitor
2x1TB WD black XSPC 360AX win7 ultimate DELL U2311H 
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post #4 of 6
Your CPU is ok with more than 3.6/3.8 ghz for that cards.. with heaven 2.1 i came to the max cap of the gpu while having my cpu around 70% at 3.6ghz.. crazy. even i thought that would not be enough. i think my sys should be capable for 580 sli with a minimal fps loss compared to your cpu at 4ghz+
post #5 of 6
aaaaaah just curious what about a Q6600 @3.4ghz or 3.6ghz....will it bottleneck a single 580 or 2 580s?
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post #6 of 6
Quote:
Originally Posted by facepalm View Post
aaaaaah just curious what about a Q6600 @3.4ghz or 3.6ghz....will it bottleneck a single 580 or 2 580s?
a little bit, if you manage the OC thru a higher FSB and lower multi to 3.6ghz or something, i think it should be ok. it´s not a 2600k but i think the fps difference should be nominal. Even with max multi kind of OC with that chip should be enough.. at the 3.5ghz are.. the q6600 is with 3.6 about as fast as a q9300 on 3.4ghz
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