3 screens running at least 120Hz for 3d, you'd need 3Way SLi/Xfire of the top end cards if not 4.

and you wouldnt be able to see what's behind the bezel, you'll see what is drawn on the screen, if you use bezel correction, the image behind the bezel is not visible, 2D or 3D, if you dont use bezel correction, you'll see everything, but you'll have duplicated sections of the image, not to mention distorted Field of View.

I can't believe I was that stupid! Saving presets in basic mode worked!

Glad to have helped!

Sorry, meant to say that with 3D, you still would "see" what is behind the bezel with bezel correction. (Hasty postings at work)

Well I would say Not.. I say 2 680 would be more then sufficent.. I have 2 480GTX's in SLI and Run Arma2:OA and ROF fine..

With the 3rd card would be minimal gains 5-10fps,, the 4th card probally less then 4 fps.. 2 High end cards would work fine If I can run 3 screens in 3d with 2 480gtx's..

I would like to have 4 cards for the Folding @ Home Program I use.. It uses the GPU to compute Folds which will helpo find cures for cancer and such..

2 Way XFire/SLI might get you 60 Frames/sec, but might also have micro-stuttering.

at what rez?? I have better then 60fps in most games..Micro stutter was known issues with some titles that have been fixed in patches.. ROF was one that suffered from micro stutters when looking at the sun. but they had fixed those issues..

I have one 7950 OC, and I can Run BF3 across 3 screens, but I use lower settings, and cfg file lines to cap my Frame/sec at 60.

6050x1080 for me, I get Upper 20's/30s with BF3 on Ultra, upper 50s/60s with a custom CFG file. But there are large dips in very extreme situations, some as low as lower 40s, which plays hell on Vsync and overall smoothness of panning and trying to aim.

Thirdwire sims are a breeze, I can run them maxed out no problem.

DCS I have to lower settings

I know plenty of people that have Cross fired 7950s/7970s, In BF3 you'll get decent Frames/sec. on 60Hz panels w/ Lowered details in 3x1 or 5x1 setups.

But the micro stutter hasn't been fixed by AMD.
its not a situation based (ie looking at the sun, looking at the water), its on 100% of the time in titles that have the m.s. problem, it's a bug/glitch or conflict with XFire and Alternate Frame Rendering and only exists on 2-Way XFire on 7900 series cards (drivers?).
Micro-stuttering is the Frame Rendering Variance from the 2 GPUs, people claiming to have m.s. on single GPU configurations are only getting low frames/sec or refresh, m.s. occurs even when your locked at Vsync.
the 7970s are notorious for M.S. in 2-Way Xfire, and have countless cases proving adding a 3rd card fixes the m.s. until AMD fixes it.

The 7900 Owners Club found a command line string to add to a custom CFG file that fixes it for BF3, or you can disable/change certain features in CCC, for the most part, a non "Power user" that doesn't know how to configure their stuff wont know how to fix it. the latest 12.7 CAP fixes it for a lot of titles by using the same settings that were posted by users that fixed it in BF3.

I know a few people that use large panels in 5x1 Portrait mode Eyefinity (something like 5400x1920 [10,368,000px]), but they use 120Hz Panels with a 120Hz Vsync.

They Tried to run just Two 7970s in Crossfire but with everything maxed they were unable to maintain their desired 120 Frame/sec, on even 3 screens [3240x1920px), I think they said they maxed out at 80 or so Fr/sec with dips to the upper 50s. But had Micro-stuttering, adding a 3rd card got them to 120Fr/sec for 3 screens, removed microstutter, but as soon as they added the last 2 displays to the eyefinity group Frame/sec dropped to 105-110, adding a 4th Card enabled them to maintain 120Hz in 99% of the time (occasional dips to 110 on specific maps and specific situations).

Running 3d is usually 120Hz (60 Frame/sec x2 [left eye and right eye fields]), so if you wanna run max details 3d (120Hz) across 62 million px, you'd need 3 7970s in CrossFire w/ Alternate Frame Rendering Turned off in AMD CCC.

well fine but I am talking nvidia SLI and you are talking AMD eyefinity.. What is the nVidia equivalent of a 7970?? if it is 570 that is just a mid range card.. you could solve all this and just get 2 690 GTX's.. I doubt you would have any troubles then.. but heck that would be a very ecpensive upgrade..

Like I said I run 2 480GTX sli'd and Arma2 near maxed out but at 3072x768 with 3D running. Of course when 3D is enabled I am limited in FPS to what my refresh rate which is (75hz) and I get 37.5 FPS in most games with 3D not running probally about 80??, i really cant test as I am running single screen currently one of my bulbs blew wich blows.. I do NOt get micro stutter in any game I play/fly since driver updates, Rof was the only micro stutter sim I had..

Except for Rof While looking at the sun and in SLI Mode I would get the microstutter it is well documented for this issue and in RoF and it was a nvidia issue since fixed by newer drivers and 777 studios optimising the code for SLI..

I am sure AMD has similar issues with Micro stuttering just the nature of the beast I imagine..



But I beleive anything over 60FPS is just numbers..unless you are an advid Twitch shooter

480, 570, 560-448, 680, and 670 have less than 7% Frame Variance in SLI, Single GPU Variance averages around 4%.

The 7970 is scoring 50% to as high as 85% variance. (ouch),

also meant to say 5000/6000/7000 series, not just 7900s have MS.

if your referring to this:
http://dangerdogz.com/forums/topic/7990-rise-of-flight-setup-guide-tools/

it wasnt Micro-Stutter, it was Stutter, caused by the engine playing hell with the GFX Cards, as it originally wasnt designed to support XFire/SLi and was added later, so Some parts of the engine weren't coded properly.