LUKE PUPLETT

“The floor plan above shows the main blocks in Nehalem, and if you've followed previous Nehalem launches (most notably Bloomfield) then you may be able to spot what's missing: there is no QuickPath Interconnect (QPI) interface. Instead, in a significant twist that differentiates Intel's new PC system architecture from even AMD's offerings, there is now a PCIe interface that enables the GPU to attach directly to the processor socket. This latter move was made in anticipation of two things: 1) the GPU will migrate right into the processor socket at a later point when Intel releases a CPU with an on-die GPU integrated into it, and 2) for a discrete GPU, Intel hopes you'll use Larrabee.”

http://arstechnica.com/hardware/news/2009/09/intel-launches-all-new-pc-architecture-with-core-i5i7-cpus.ars