Oh dear it looks like Fudzilla has been duped yet again, the documents he recieved were false and AMD has confirmed there will be no R650 / 670 and there never was going to be one apparantly.
http://www.fudzilla.com/index.php?option=com_content&task=view&id=1340&Itemid=1
Fudzilla said:Computex 07: There is no 65 nm R600
We learned a disturbing bit of news and that is that all the information about the 65 nanometre part, including the “leaks within AMD”, were false.
AMD wants to find some high profile mole(s) and deliberately planted these two codenames and a chip specification.
Fudzilla has seen these documents and can confirm that there were at least a few mentions of R650 or R670, but I have to dissapoint you all, as it is not real.
R600 is the best you will see from ATI until Christmas and you will have to find your peace with it.
http://www.fudzilla.com/index.php?option=com_content&task=view&id=1340&Itemid=1


, the 680 is the next chip not the 700 fyi.