Nehalem’s die size to be larger than AMD’s Shanghai
Fudzilla quotes its sources as saying that, while Nehalem will likely be faster than Shanghai, it will have a “significantly bigger” die. The site speculates that Nehalem’s die may be 20-30% bigger than Shanghai’s. This increase may originate from Nehalem’s use of both an integrated memory controller and simultaneous multi-threading, not to mention the launch chips’ expected four built-in cores. However, Shanghai will also have quad cores and an integrated memory controller, as well. The size difference could also be attributable to one of the largest consumers of die area in modern processors: on-chip cache.
Both CPU’s are 45nm, and should arrive in the fourth quarter of this year.