So I wanted to get some advice on whether to go 3-Way SLI or 4-Way SLI on the Titans (SC).
 
I have been running 4-Way SLI since the GTX-580 Classified, then the GTX-680 Classified, and now am looking to go with 4-Way SLI Titans.
 
However, I've been reading a bit about the benefits of 3-Way SLI as opposed to 4-Way and it seems like 4-Way SLI is more troublesome than one would believe. 
 
For instance, 3-Way SLI supports Multi-GPU Anti-Aliasing. I never thought that 4-Way did NOT but apparently this is the case (4-Way SLI does NOT support multi-GPU AA). Also, some folks over at OCN have been running some tests and I've talked to them (over PM) and they compared 4-Way SLI, 3-Way SLI, and 2-Way SLI with the GTX-680 Classified and GTX-670 4GB (in Nvidia Surround too) and have said that 4-Way is actually quite horrid for gaming. Apparently the 4 GPUs cause issues with frame-timing etc. which causes severe stuttering and crappy gameplay experience (although FPS numbers are better in absolute terms).
 
My personal experience has been pretty good so far except for a few games where there is stuttering or the scaling is poor.  
 
I play on 3 30" monitors in Portrait mode (5160x2560) pushing 13.2MP with 4x GTX-680 Classified @ 1306Mhz and an i7 3970X @ 4.5Ghz.
 
Most of the games I play are great; BF3, I get great FPS on certain maps and in others, they are in the 40s which is absolutely pathetic for such a GPU setup.
 
BF3: http://youtu.be/ORA0E2IZF84
 
Hitman etc. I get almost constantly > 120FPS. Tomb Raider with almost all settings maxed out I get 60 FPS (w/ VSync) and Crysis 3 I get around 45FPS but there is perceptible stuttering depending on the scene/level.
 
Crysis 3: http://youtu.be/SahUB88r56k
 
F1 2012 I used to get 85FPS with everything maxed out but now I get only 35 FPS with the same setup! I guess the drivers have something to do with it; I feel nauseous playing F1 2012 @ 35FPS.
 
F1 2012: http://youtu.be/sBHOVEj4x9w
 
I guess, long story short, given my setup (3 30" monitors @ 5160x2560), what would you guys suggest - 3-Way SLI or 4-Way SLI Titans? I want the best possible graphics setup. I use my rig for work, gaming, as well as 3D modeling, photo, and video editing/rendering. 
 
Please let me know as I'm about to pull the trigger on 4 GTX-Titan SCs! 
 
Thanks in advance.
 
*Edit: Some GPU pr0n:
 

The beauty of SLI is that you can get more later; that said, many reviews and users will claim that 4-way doesn't scale; but that only applies to games, settings and resolution scenarios of today and cannot be extrapolated to apply to the future unless nothing new comes along.  If one assumes you'll be keeping Titans for a while, I say plan ahead because time doesn't stop and something will force your cards to scale better whether it is a cheaper higher-res display or a future game.  It just plain will happen.
 
You can always plan ahead for 4-way eventually, but someone like me doesn't like doing piece-wise upgrades, so I'd get everything up front and buy myself some complacency.  What if you would want to take your system for granted years to come?  Nothing wrong with that if you get more than you need now for a future use.

I was thinking the same thing Baasha, but I decided with 3 way right now.  Heck you can always get ANOTHER Titan after drivers and profiles mature.  I also enjoy running a sound card and that just won't work with 4 cards.  Either way you can't lose.  For now I am sticking with 3 Titans :)
 

 
 
 
 
 

+1 for "only" 3 titans. Much less multi GPU problem than 4 GPU and 3 titan is enough to run anything you can throw at it, even in surround.

nice