Computer components to support gaming with a titan x or two for years to come?

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Elhaupto

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Sep 7, 2014
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Greetings internet,

I'm looking to install a Titan X, and eventually another Titan X, into my system for gaming on a wide 1440p monitor (3440x1440), as well as simultaneously having another less graphics heavy application running on a different 2560x1440p monitor, and I have the feeling that some of the components in the system I have now might not be enough to support them.

My specs are:
i7 4790k
2x GTX 980 in sli (looking to sell these, the 4 gigs of vram won't like that resolution)
Corsair RM 850w psu
MSI z87 gaming motherboard
2x 4 and 1x 8 gb ram

I do not want to do any overclocking, I simply want a consistent framerate above sixty on the highest settings, and I want to be able to have that for a great many years to come on the newest titles. What, if anything, do I need to upgrade or purchase in order to smoothly handle this setup?

Thanks in advance for any help you may have to offer.
 
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Woody1999

Woody1999

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Jan 3, 2015
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You should probably look at a new PSU, 1000W to be sure. The RM750 is a tier 3 unit and not recommended for gaming systems, let alone monster Titan X SLI rigs!

http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html

Lastly, I'd upgrade the RAM to at least 24GB. The Titan X requires 24GB of system RAM in order to utilise its huge 12GB of VRAM.

Other than that, you should be fine. The i7 4790K is a fantastically powerful CPU, and you won't see bottlenecking issues.

Woody
 
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Elhaupto

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Sep 7, 2014
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Are you sure the motherboard wouldn't also be a concern? Something about it being like 1/20th the price of the gpu power doesn't sit well with me.
 
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Elhaupto

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Sep 7, 2014
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z87-gd65
 
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Elhaupto

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Well I'm glad, that's a little less money I have to dump into this. It makes me wonder what all the hyper expensive motherboards are for though.
 
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Woody1999

Woody1999

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Well, they tend to be for people who want to use 3-4 way GPU setups, or really have a use for all the features that the top end boards supply. I'm fine with my cheap motherboards that get the job done, and most importantly - look cool ;)

Woody
 
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Einis

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Jul 30, 2015
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Sigh... I just had a 40 minute discussion with Nvidia Tech support on the whole 24GB system RAM issue - I just got my Titan X, and contrary to the Nvidia website (where it clearly states min 8GB recommended 16GB on both the page itself and in the user manual) the box I am currently looking at states 24/48.

Since I intend(ed) to use it in a PC with 16GB RAM, I was infuriated - but said tech support individual ASSURED me, that I would be able to take advantage of the full 12GB of the Titan (which will be used, since I won't use it for gaming but rather as an IRAY GPU renderer).

I am so confused ... and rather hesitant of risking ending up with the world's most expensive coaster :-(

Oh, forgot to mention, Nvidia Tech support says that the requirements printed on the box are "not correct" - 8/16 on the website are the correct requirements...
 
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Einis

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Jul 30, 2015
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If I run dxdiag, it says approximate video memory 4095MB - but GPU-Z says 12228MB, and when I use the card for rendering, GPU-Z reports memory used; so far the largest scene I've rendered was 10538MB - which wouldn't be possible if the card was unable to use memory above 4GB (the render would have reverted to CPU instead of GPU).

Still confused, but apparently it works the way I need it to work - maybe Direct X handles vram differently?

 
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Woody1999

Woody1999

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Hm. Have you compared your results to that of benchmarks? There's bound to be plenty 4790K + Titan X rigs out there for you to compare to. If you're getting significantly lower benchmarks, you might have a VRAM issue.

Woody
 
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