It would appear that Nvidia does not currently support Surround over DP1.2 either MST or DaisyChain (which uses MST technology).
Quote:
Nvidia GeForce 600 and 700 series cards support DisplayPort 1.2 and are compatible with the hub. However, with the Nvidia cards you can only extend the desktop, and you can't combine the monitors for one large resolution for gaming the way AMD EyeFinity does. Nvidia cards support up to four monitors, AMD cards can handle six.
source:
http://uk.hardware.info/reviews/4705/2/ ... ut!-testedhttp://forums.evga.com/tm.aspx?m=2008303