Image of 55nm GT200 Exposed
 

According to the image we have on hand, the mark of GT200b on GeForce GTX260 graphic card will change from 65nm “G200-103-A2″ to be “G200-103-B2″. The “B” means latest 55nm processing technology, and its production cycle happened during the 33rd week of this year (August 11th to 17th), only 5 weeks after G200-103-A2 which was manufactured in the 28th week. Therefore, obviously NVIDIA had prepared for a long time.

http://en.expreview.com/2008/12/02/t...0-exposed.html