tri-fire set up.

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jktmstokes1

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Sep 24, 2013
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would an i5 3570k bottleneck 3 290s?

I currently have 2 and all is well. I wish mantle was further along... But for now it isn't and I am afraid a 3rd GPU will bring out the CPU as a bottleneck.
 
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veladem

veladem

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Sep 6, 2012
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[strike]Yeah... Get a 4770k and OC xD[/strike] Some people don't understand humor... Sorry about the confusion, thought the "xD" face would be enough to convey the joke. Sorry again.

Let me rephrase my above statement;

Yeah! Get a 4770k and a $800+ custom loop for your GPU's and CPU. Put the CPU @ 1.21 gigawatts and you should achieve a crazy OC that is manageable with the custom water loop.

I think it wouldn't bottleneck personally.
 
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IInuyasha74

IInuyasha74

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May 1, 2013
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lmfao do not listen to that guy at all.

1. I don't think any game can use more than 4 threads currently, so there is very little to no boost in performance by having an i7.

2. The Haswell series performs all of 3% faster at the same clock speed.

3. Ivy Bridge overclocks higher and stays cooler.

4. That CPU is faster in many tasks than AMD's top CPU which wouldn't bottleneck it.

5. Chances are that an i3 wouldn't bottleneck it.

So in other words, not only is that CPU sufficient at its regular speeds, but the CPU he advised you to get will in most cases when you are playing games give you worse performance after both have been overclocked. No reason to upgrade.
 
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iam2thecrowe

iam2thecrowe

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Jul 4, 2010
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depends on your screen resolution. what you can do to see what is bottlenecking, test at your current max resolution and measure fps. now drop the resolution much lower, half at least. if you see minimal performance increaser then cpu bottleneck, if decent performance increase then gpu bottleneck.

i think with 3 290's, scaling isnt going to be good anyway, heat is going to be a big problem and will cripple performance, and obviously power consumption will be insane.
 
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IInuyasha74

IInuyasha74

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May 1, 2013
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You know I never thought about it, but thats a really good way to test for bottleneck.

He is right on the heat and power consumption also. Hope you have a very breezy case.
 
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jktmstokes1

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Sep 24, 2013
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I am gaming at 1440. Might set up 3 1440 monitors in portrait for gaming or get a 4k monitor. I have the phantom 410 which does well keeping my crossfire setup cool but I was thinking about going with the azza 9000 to run dual PSUs. One for system and 1 gpu and the other for the 2 gpus.

I figured the i5 would be good because I know it is near the best for gaming but I was doubting myself because every benchmark test on a website has 400$ or more cpu it seems.
 
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iam2thecrowe

iam2thecrowe

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Jul 4, 2010
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websited use the most powerful cpu's and overclkock them for testing to make absolutely sure they are not getting a cpu botrtleneck, as they dont want it to be a factor affecting gpu testing. i would say, at 1440, 2 290's should be more than enough. I would be looking at tri-fire scaling and frame latency benchmarks if you can find them for triple monitor, as this has been the achilles heal of amd crossfire, much stuttering can occur.
 
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