I maybe wrong, but it looks like all they have done is modify the .inf file to add support for the 7800gs to me. Maybe they added some fixes but don't see any major one's. They did add a more current profile for F.E.A.R for sli I seen in the read me for this set. They don't seem any different than the first 81.98's on my machine, but with all drivers they work different on different setup's.
Read me
http://download.nvidia.com/Windows/8...ease_Notes.pdf