Quote Originally Posted by Systemlord View Post
Running a 4 way SLI setup from the beginning doesn't offer much performance diference like 2-way SLI, the third and fouth card offer a less and less performance as you go from 3-4 cards.
I remember seeing a review that the microstuttering is much better with the extra cards though. Even if you don't get any worthwhile FPS gains I think the smoother gameplay would be worth it (I'm assuming that if you can afford 2 then you afford another one)