Probably not better tesselation than heaven benchmark beacause that program is built to max out your system that is if dx11 is included. As for dx 11 in c2 I'm not sure because crysis warhead came out in 2008 after crysis 2 was most likely already towards the end of the planning stage and dx11 didn't come until 2009. But if the c2 team took up on upgrading the engine preproduction then dx11 may be a possibility
IhaN u know that tesselation is a ressource gentle technology ?
if it's gonna be implemented then c2 will look so much awesome (on PC [cos i don't think 360 could support it and they wanted to make it look like ps3 tho' thats the better console]) that we never could imgaine like when prealpha videos of crysis stunned everybody
(what I'd really really really like to see - just as some alternative technology to POM or upgrade whatever)
and it would look better than Unigine due to 2 points
- way better textures (heaven had some pretty low res stuff - vegetation textures for instance)
- better lighting (time of days) / levels (variety in terms of design)