FUD Zilla has news about Intel's Nehalem architecture. The site claims the Nehalem processors will be faster than AMD's K10.5 processors but will feature a 20 to 30 percent larger die:
Intel probably needs much more space to accommodate the core logic for eight thread CPU capability, but this might make Intel’s chip between 20 to 30 percent bigger.
Bigger chips are traditionally hotter and tougher to produce, and this might be the same situation that we’ve already seen with the G92 graphics chip versus AMD's RV670. Nvidia’s G92 is faster, but at the same time much bigger than the RV670.
The Nehalem processor is expected in Q4 2008 and the K10.5 in the second half of 2008.