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Processor for GTX 690 SLI??

Tags:
  • Nvidia
  • Gtx
  • Processors
  • SLI
  • Graphics
Last response: in Graphics Cards
August 11, 2012 7:36:31 PM

Hey,

Sorry if this might sound like a bad question, but I read somewhere that in order to efficiently run 2 GTX 690's in SLI you need a hexa-core processor. I was wondering if this is true and if I would be able to use my 3770K ivy bridge processor with this. If not what would you recommend?

Thanks.

More about : processor gtx 690 sli

a c 113 Î Nvidia
August 11, 2012 10:53:29 PM

It's not true, but the only reason to have that much power is a 3 monitor gaming setup, and probably a 120hz 2D or 3D Vision Surround system. Otherwise most the power will be lost in what most people consider a CPU bottleneck. However, is it really a bottleneck when you are rendering excessive FPS, beyond what your monitor can render? I'd consider it more of an excess of GPU setup rather than a CPU bottleneck.

Anyways, what is it you are wanting to use those 690's for?
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August 11, 2012 11:00:56 PM

As bystander said, you shouldn't really have any problems unless you're doing triple monitor/3d. However usually people who have 2000$ to spend on GPUs usually have enough to get a 3930k (or 3960x) as well :D  That's probably why you are seeing that.
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August 11, 2012 11:19:00 PM

get a Sandy Bridge E platform so that you have all PCI lanes going
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August 11, 2012 11:35:22 PM

Yeah this seems like the rare situation where X79 could actually be of use over any of the LGA 1155 socket platforms; that'd be a reason to go for a 3930k. I still kind of doubt that 3770k will be any different from 3930k from a processor point of view, though. No game that I know of uses six threads, and the performance per core is actually higher on the 3770k than on the 3930k.
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a b Î Nvidia
August 11, 2012 11:49:32 PM

WTF!Two 690 what in the world would you need that for ahaha way overkill bro i like it lol.
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a c 113 Î Nvidia
August 11, 2012 11:52:00 PM

bigcyco1 said:
WTF!Two 690 what in the world would you need that for ahaha way overkill bro.


It would be useful for gaming with 3x 120hz 1080p monitors, 3x 1440p monitors, or 3x 3D Vision monitors. I don't think much outside those 3 configurations would need that.
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a b Î Nvidia
August 11, 2012 11:52:55 PM

bystander said:
It would be useful for gaming with 3x 120hz 1080p monitors, 3x 1440p monitors, or 3x 3D Vision monitors. I don't think much outside those 3 configurations would need that.
o.. that makes sense thanks for explaining :) 
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August 11, 2012 11:58:06 PM

a single GTX 690 or a far lesser alternative $$$ and GTX 670 in SLi..?
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August 12, 2012 7:39:01 PM

Sorry I forgot to leave this out.

I'll be using 2 BenQ XL2420TX. I would go for a third but there really isn't any room to add that and not be cramped up in the corner of my room.
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a c 113 Î Nvidia
August 12, 2012 7:56:40 PM

mufanza said:
Sorry I forgot to leave this out.

I'll be using 2 BenQ XL2420TX. I would go for a third but there really isn't any room to add that and not be cramped up in the corner of my room.


I personally use 3D Vision with 680's in SLI, so I know what you should expect with a single 690. I can play most games maxed out in 3D vision with 60 FPS. Crysis 2, Batman AA and many others. However, Metro 2033 requires me to play at high rather than very high settings and The Witcher 2 is ultra without ubersampling (another 690 won't help this) and no DoF (DoF is not useful in 3D anyways). The Witcher 2 drops to the high 40's or low 50's in the most demanding areas with those settings.

Other than those, there will not be much out there that would push a single 690, and a single gets great results on those. I'm not sure you need 2.


EDIT:
Did you really mean you plan to use game across 2 3D monitors at the same time? This is a bad idea. You end up with a bezel right down the middle of the action making it hard to aim and be immersed. You are much better off going 1 or 3, but not 2.
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August 12, 2012 9:00:08 PM

hmm i am planning also 3 xl2420t, but uff they are expensive :)  with 3 of these my build is getting 2.8k eur ...

possibly a 3rd usable card would be something for physx? tough i am nvidia newbie. do you have to connect physx card via sli or can it be on its own. and what card would be enough for physx. possibly 660/670 should suffice?
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a c 113 Î Nvidia
August 12, 2012 9:08:55 PM

revro said:
hmm i am planning also 3 xl2420t, but uff they are expensive :)  with 3 of these my build is getting 2.8k eur ...

possibly a 3rd usable card would be something for physx? tough i am nvidia newbie. do you have to connect physx card via sli or can it be on its own. and what card would be enough for physx. possibly 660/670 should suffice?


Don't get a physx card, you already have plenty of power, but if you did, the dedicated card is not hooked up with a bridge.
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August 15, 2012 3:45:22 PM

physx is used to help cpu but only in few games, so in other games it is of zero help and just eats kWatts?

thank you
revro
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a c 113 Î Nvidia
August 15, 2012 3:48:33 PM

revro said:
physx is used to help cpu but only in few games, so in other games it is of zero help and just eats kWatts?

thank you
revro

Yes.
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March 24, 2013 1:22:57 PM

You are going to need at least a 3930k, let alone a sandy bridge-e platform, for the most part, what you heard is true. I'd recommend a hexicore processor, and if you're going to be running two gtx-690's, you could probably also invest in a 3970x. you probably want a hexicore intel processor, and one video card, it already has two gpu's. I'd look at a really beefy processor for just one. and if you're thinking of two, you should at least get a sandy bridge-e, because they also released one in quad core.
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