Quote Originally Posted by largon View Post
Helmore,
Dunno how you got that 120mm² - it's way too low.
It would require a shrink worth of two full nodes. 55nm to 40nm is one single node (two half nodes, actually). One full node shrinks to about 75% of original.
R600@80nm. is 408 mm^2
RV670@55nm. is 192 mm^2
And they are pretty much the same chip, they added some features and cut the memory controller in half, but the amount of transistors is roughly the same.