is a i5 4670k bottlenecking two gtx 780's?

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bubbleradish

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Mar 30, 2014
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Is a i5 4670k bottlenecking two gtx 780's ? I also have 16gb of ram, 850w psu and a hyper 212 evo. Sorry for making a short message but there isnt much to say XD!
Thanks. I will appreciate any replies!
 
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sadams04


Ding ding ding. Assuming things like drivers being up to date and the lot, there very little risk that your CPU will hold you back at all. Overclocking is always nice, but still not needed to keep up with a pair of 780s. MAYBE if you were running 3840x1200 (3840x1080) or higher that this risk comes into play.
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Derza10

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Sep 7, 2012
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It will in some games but not in others... For the most part it should not be a problem. Do you use a 60Hz monitor or one of the 120/144Hz ones? If you use a 60 Hz monitor the i5 will pretty much always be able to get you to 60 FPS.
 
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Beezy

Beezy

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Nov 4, 2013
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depends on the game but its certainly possible. Whats more likely is the game cant utilize both 780s as well as you hoped.

and easy way to answer your question though would be to overclock the CPU. maybe 400 Mhz or more. if you see a noticeable increase in frames, then the CPU wash holding you back. if you overclock the GPU, and see a/the increase in frames, the GPU was holding you back. If you see no improvement though, its likely the game is just not optimized so well for your set up. (poor developing or unlucky hardware combination?).

also consider the res you play at
 
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Derza10

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The i5 can be the bottle neck if he is playing on a 120-144Hz monitor in some games, But then again you really don't have much CPU options that wont do that. So yes the i5 CAN be a bottleneck but its not going to happen often and should not be something you worry too much about.
 
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Beezy

Beezy

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in theory, with perfect scaling all across the board, and perfect optimization the i5 4670k (maybe OC'd a bit) has enough grunt to handle the full power of two 780s. but how a certain game is developed will have MAJOR implications for the end result (in terms of performance, frames, skips and dips etc)
 
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sadams04

sadams04

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Nov 23, 2010
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Ding ding ding. Assuming things like drivers being up to date and the lot, there very little risk that your CPU will hold you back at all. Overclocking is always nice, but still not needed to keep up with a pair of 780s. MAYBE if you were running 3840x1200 (3840x1080) or higher that this risk comes into play.
 
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enemy1g

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Oct 3, 2013
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Refresh rate has nothing to do with the performance of his rig, or any other rig. It merely determines how fast that the monitor will be refreshing. It comes down to the raw grunt power of his GPUs, and in certain games simply will not get 120-144 average FPS on maxed settings, thus likely needing to turn down some settings. But with most games, even if you're playing at 1440p with 120Hz+, 144 average FPS isn't hard to achieve with AA off.
 
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Beezy

Beezy

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still, all good points aside, with the information we have the only way to get a real (relative to OP) answer is to overclock the CPU. If we see an improvement in performance its logical to assume the CPU was holding him back.

If nothing changes, then the game is already running at its max, and OP will just have to settle for now.
 
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Derza10

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Well duh.... I'm just saying if he is getting over 60 fps on a 60hz monitor the bottleneck is meaningless anyway... But if he can only get say 80 ish FPS but is using a 120-144hz monitor then it can be an issue...
 
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enemy1g

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Oct 3, 2013
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There's no issue with running an average of 80 FPS on a 144 Hz monitor. The monitor won't be utilized to it's full potential, but that doesn't mean that it's a bottleneck. The monitor will still refresh faster than 60 Hz. And OP didn't really give any specifics to what the issue was, or in which game this was. Regardless of what game he is playing, he could get 144 FPS if settins are lowered, depending on the game, as two 780s have absolutely no issue with any game at the moment.
 
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Derza10

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Well yea that would be the only issue i could think he could be talking about... Not getting the max FPS that his monitor can support on highest settings... But like you said he never really specified what he was worried about and on what settings/games.
 
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