[Arinoth]

It's split across three monitors, not sure entirely how they balance it but they do.

You wouldn't have negative vRam, people with 2 570s, that have 1.5GB of vRam, or even 460s with even less have been playing these games just fine. The catch with surround/eyefinity is that you will never really be able to play the latest and greatest games and full cranked settings without getting less frames then a single monitor gamer, just the load.