I have money burning a hole in my pocket.  Ready to unload on a new GPU for my Triple Monitor Setup.  Thanks to everyone on their advice I am convinced the 780 ti is the best card for me.... however....
 
I keep hearing about the 790 and the Titan Black coming out this month.  I have been eyeballing twitter and different forums every day.  For a product that expects to be released any day now... the talk about it is non existent.
 
What is the deal with these 2 cards?!?! I am going crazy thinking about it.  For a 5760 x 1080 resolution do I NEED the 6gb of VRAM? Do I NEED the Titan Black or the 790?  If only I could see benchmarks :( Release dates? rumors? ...... anything? 
 
Would it be safe to say the 780 ti is perfect for me and even better if I run 2 of them in SLI that there will never be a need for a 790 or titan black or anything else that comes out in 2014... or even 2015 if the 780ti is as good as they say it is.  
 
(on a side note even though I have 5760 x 1080 ... i don't expect to run that res in ultra or very high... i am ok in low or medium settings at that resolution.  It is running a single monitor when I want the best quality)

The best way to answer your questions is to answer them one by one.
 
First, is the memory. Your question is, do you *need* more than the standard 3GB's that comes on a reference 780Ti. The answer to that is, no. It is not *required* to have more than 3GB's of vram to play games at any resolution. Now, is it *preferred* to have more than 3GB's with the kind of resolution you are running? Absolutely, yes. At 3GB's you will run into a bottleneck pretty quick in most games. To give you an example, I run a single 2560x1600 monitor and I see upwards of 3.5 to 4GB of vram usage with Call of Duty. Now could I turn down the eye candy settings, and get it below 3GB's? Sure I could, but do I want to? No, absolutely not. In my own personal opinion, a big part of the whole pc gaming experience is the quality of the video so why would I want to start turning down settings??
 
Second, the 790. You first need to understand what this card is, which is nothing more than two 780's on one pcb. Details of this card have not been officially released yet, so everything about the card is just speculation at this point. Nobody really knows how much memory it will have, or if it will even be two 780's. For all we know, it could end up being two 770's..........I seriously doubt this, I'm just making the point that we simply don't know. The rumor is that it will have 10GB's of vram total, which would mean 5GB's per gpu or more importantly 5GB's total useable vram (1GB less than the Titan). This card is ideal for people that only want a single card, or have small cases that can only fit a single card. Anytime you have the option of having two separate cards vs. a single card with two gpu's the two separate gpu's will almost always be better.
 
Last, the Titan Black. Again, just like the 790 this card has yet to be announced so official specs are not available yet, but I think it's safe to *assume* that it will be nothing more than a 780 Ti with 6GB's of vram.
 
Now, out of all of these options, if I were in your shoes, and I had the money to spend, I would be looking at two Titan Blacks. This would give you both the power and the vram to run the resolution you have to it's potential, or at least as close as you can.

Nah, don't think Nvidia will let the board partners make custom coolers for the Titan Black. I guess it'll be just the same as with the original Titan...

I was reporting 4 gb+ VRAM usage on bf4 with surround 1080. Sli 780s(ti) would do the trick, but if you've waited this long, what's a couple more weeks?

I'm on a 460 ATM, was on 780 classified sli, but am waiting till the end of feb to buy a new.

I may just end up getting 2 x 780 ti when the price drops.  My MB can support up to 4 way SLI or Crossfire so i could at least count on the 780 ti whether it was just 1 of them or 4 of them to last the next 3-4 years I think?  

That (3-4) years is a long time in the Video game development and Vram requirements may double by then.

I have a feeling that the 790 is going to be 5Gb of uber expensive..... I see the possibility of $1500 US just because they can.

My guess would be that the Titan Black gets released at the exact same price point as the original Titan. I say this only because they've stated that they aren't releasing it until all stock of regular Titans runs out, and the Black will be a direct replacement. Just my guess though.