Found this little slideshow supposedly directly from ATi, that seems to abuse the hell outta nVidia and their technologies. Quite funny really Just another one of those ATi vs nVidia arguments! http://forums.techpowerup.com/showthread.php?t=5700
According to the Inq the 7800GTX fails the SM3.0 test, however the 6800s do not. Not sure about High Dynamic Range though.