The Intel family of processor technologies, delivers a new level of performance in a repartitioned platform. Intel repartitioned the platform based on the integration of the memory controller into the processor socket, the QuickPath Interconnect (link-based architecture), and a scalable I/O subsystem (based on the IO Hub). This paper provides a high-level overview of both the QuickPath Interconnect and the I/O subsystem of this new generation of platforms.