It's not just host nations of the Olympics that are decided almost decades in advance, but also Intel's silicon names and the fab process they're going to be built on. Intel has its plan for the greater part of this decade already charted out, well beyond the upcoming Ivy Bridge architecture. Intel follows the "tick-tock" product cycle, where every micro-architecture gets to be built on two succeeding fab processes, and every fab process getting to have two succeeding micro-architectures built on it, in succession. Westmere is an optical shrink of the Nehalem architecture, it was a "tick" for the 32 nm process, Sandy Bridge is its "tock", and a new architecture. Ivy Bridge is essentially an optical shrink of Sandy Bridge, it is the "tick" for 22 nm process.
