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Questions about SLI/Xfire and VRAM.....GTX 760

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Last response: in Graphics & Displays
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November 26, 2013 11:22:05 PM

I'm building a gaming rig and I've been flip-flopping on the GPU, per usual. I haven't payed much attention to the developing technology over the past few years, so I've been reading around playing catch-up. Anyhow, I've pretty much settled on the ASUS R9 280X for several reasons. It's fast as fug, good price:p erformance ratio, and it has 3GB of vram. To me, the 3GB is a big deal because, in the next year or two, I'd like to either switch from 1080 to 1440 or greater resolution or get a 3-monitor setup, and I understand that those resolutions will utilize the increased vram from the typical 2gb in most mid-range cards. My question is, if I get a GTX 760 w/2GB and decide to run it SLI in the future, will two of those cards still only be effectively utilizing 2GB of vram or with they have a cumulative effect and act as 4GB? Also, if I was to get one card with 2GB, would I then be able to run it SLI with another card of the same make and model but a 4GB edition? I ask because I'm considering instead getting a MSI GTX 760 OC 2GB because it's cheaper, I prefer nvidia, and I think that, at the present, it will be sufficient for my needs. I just want to know whether that would provide me with the opportunity to SLI and run 3 monitors in the future.
November 27, 2013 12:20:46 AM

Also, something I forgot to ask....my mobo is an ASUS M5A97 R2.0. It has two PCI-E 2 (x16, x4). What does the "(x16, x4)" part mean? I gather that that refers to how efficiently two cards can function in SLI/Xfire?
November 27, 2013 1:47:50 AM

you can run 4gb card with a 2gb card, but you will have only 2gb of VRAM availiable. i suggest get a 4gb now, and another later. these 2 are the 780ti range power.

(x16, x4) refers to the lenght of the PCIe bus. nvidia does not support x4 for sli, therefore, you need a new mobo for sli.
November 27, 2013 3:39:37 AM

i would get the 280x. it will do better than the 760. my bud got a 760 and tried to show off.....i disabled crossfire and still toasted him.
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