The Intel Core 2 Extreme family has 12 processors in CPUVault (12 desktop), launched between 2006 and 2008. It spans 1 series or generation: Core 2. Core counts run from 2 to 4, with boost clocks up to 3.2 GHz and TDP from 44W to 150W. The highest core count is the Core 2 Extreme QX9770 with 4 cores.