Originally posted by: chizow
If you're willing to spend another $1000-1200 on 2 more Ultras, $250-300 on a 780i Tri-SLI board and $200-300 on a $1000W+ PSU you can get pretty close to playable frames @ 2560 at High settings.
For single-card, I'd say at least 2 years (2010) if we see two more generations of new GPU architectures. Takes about 2 years for a new GPU architecture which typically doubles performance from previous parts. Will need about 4x performance of the Ultra, so new GPU architecture sometime in 2008, and another in 2010. If R700/G100 come out this year you might be able to do 2560 with lower settings and even get decent frame rates at higher settings with CF/SLI.
Crysis certainly looks amazing though, just have to wonder how much other games will catch up by then when there's hardware capable of running it in all its glory.