wow awesome information, i got the information i wanted from the ati side of graphics. thanks for the great review!, now i got to find a 480gtx sli 5040x1050 resolution review so i could compare. :bowdown
I'm not sure when you'll find that. I've been under NDA with NVIDIA for a couple months but haven't heard anything about the 3D Surround support being available yet. The NVIDIA solution for Surround is not hardware based, it is software like SoftTH. There will be somewhat of a performance hit, no one knows how much. And, the NVIDIA Surround solution will require two cards.
Considering that a single 5870 will hit 40-60fps in most of our test at 5040x1050 @ 4xAA, I'm not sure there is any case to be made for a solution that requires two cards (no matter the vendor). A 5850 or 5830 would still provide playable rates (albeit at slightly reduced settings) at 5040x1050.
From what I would deduce, the SLI Fermi setup would leave you with horsepower to burn and not provide a good return for the investment. Now, if you are interested in the 3D aspect, that would change the cost/benefit.
An "GX2" card from NVIDIA that offered three connections on one card would provide support at a lower cost, but my tests with ATI cards show that multi-GPU isn't really needed at 5040x1050. There were big gains in moving to SLI or "GX2" at 5040x1050 under the TripleHead2Go, but the current generation of video cards seem to have plenty of horsepower.
The benefits of multi-GPU become more apparent (and a better investment) at 5760x1200 and above. Again, I haven't tested Fermi in Surround and I haven't seen any benchmarks for it. But I am still steering you towards a single card solution for ATI as well, and would even advise you to consider the 5850 or 5830 for the best "bang for your buck."