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Sli 680 or one 690? - Page 2

post #11 of 31
Quote:
Originally Posted by Mattzap15 View Post

I'm going to need a definition of efficient, as I don't understand what it means

what he means is that the 690 will require less power than the 2 680s
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post #12 of 31
Two GTX 680's. Have you considered getting two GTX 670's instead, and overclocking? They are very close, and you could save some coin in the process.

Just a thought thumb.gif

Only reason I say 680/670 is for three simple reasons:

> Redundancy; if something happens to one card, you still have an extremely capable card as a backup until you can replace the other one.

> Overclocking headroom; each card has better power delivery by itself.

> Looks freaking cool.
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post #13 of 31
Two 4GB GTX 670's is the route I would go.
Put the money into the extra VRAM so you have it when you need it, the performance of SLi GTX 670's and 680's are very close.
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post #14 of 31
Thread Starter 
I just realized there's 680's with 4gb of vram. I had no idea. That's actually better than the 7970's. After reading all the discussions about Vram possibly being important, that seems like a good choice.
These ones have the highest reviews in pcpartpicker: http://pcpartpicker.com/part/evga-video-card-04gp43687kr
They are $600 each though... But I mean, if 4gb to 8gb of vram makes such a big different, it sounds worth it. I would like to upgrade to 1440p someday if a monitor with 120hz and good input lag is released with it.

Edit: About the efficiency, does power requirement only affect my electricity bill or something else like making my pc hotter?
Edited by Mattzap15 - 9/27/12 at 1:18pm
post #15 of 31
Important things to take note of:

The GTX 680 4Gb is ONLY necessary for EXTREMELY HIGH resolutions. Even if you went with a 1600p, 2Gb is enough, you won't notice the difference jumping to 4Gb.

4Gb is 4Gb, not stacked to 8Gb. Memory on graphics cards are mirrored so each card receives and works on the same information. For example: A 4870X2 2Gb isn't 2, it's 1Gb per core mirrored.

The 256-bit (Nvidia) and 384-bit (AMD) difference is only different at extremely high resolutions as well, where that bandwidth gives the 7950/7970 a slight advantage.
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post #16 of 31
as suggested above, you could go with the 4GB 670s and overclock. close to the same performance and you can get them with the 4GB for $500, the same as the 2GB 680s
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post #17 of 31
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post #18 of 31
VRAM in SLI is not added.
I.E. 2x 2 gb =/= 4 gb of vram available.

This is why I would recommend 4gb 670s. You get a vram hungry game like skyrim with a bunch of addons and you will be wanting it. Or if you get a triple monitor setup or some higher resolutions.

I mean lets face it, if you are going to spend $1,000 on video cards you aren't going to run them on a $140 monitor, that would be silly tongue.gif
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post #19 of 31
Thread Starter 
I will consider the 670's and look at performance differences. I've been reading a lot of threads about 2gb already getting capped, so getting more ram seems like something important for the games that will come out in the near future. Also, idk if I'm going to eyefinity, but i would like to be able to.
post #20 of 31
*Surround. And 4Gb GTX 670's.
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