Its not a new reference design by Nvidia, i guess that should be pretty obvious since its an AIB partner and not Nvidia who is designing/making it. If it were a GTX 485 that would mean a Nvidia reference design.
Here are links to articles explaining Little tiger is making a non-reference GTX 480 and not some "fabled" 512 core GF100 based card.
links to articles about Little Tiger non-reference GTX 480 which the PCB in the article above if for.http://translate.google.com/translate?js=y&prev=_t&hl=nl&ie=UTF-8&layout=1&eotf=1&u=http%3A%2F%2Fexpreview.com%2F9967.html&sl=zh-CN&tl=en
The mad thing is if you go to Lil Tigers site they show this PCB as a GTX 480.http://www.fbykj.com/