Intel's CPU release strategy. Approximately each year, either a "Tick" (new microarchitecture, for instance Nehalem) or a "Tock" (die shrink and incremental improvement of current microarchitecture, for instance Ivy Bridge) will be released.
|Core, 65nm (Q1 2006)||Penryn/Wolfdale/Dunnington, 45nm (Q4 2007)|
|Nehalem, 45nm (Q4 2008)||Westmere, 32nm (Q1 2010)|
|Sandy Bridge, 32nm (Q1 2011)||Ivy Bridge, 22nm (sched. Q1 2012)|
|Haswell, 22nm (sched. Q1 2013)||Broadwell, 14nm (sched. Q1 2014)|