An Intel brand for Pentium 4 chips that run at the highest clock rates and may include a third level cache (L3 cache). All chips include Hyper-Threading, and at least one model is a 64-bit CPU ...

Intel's first dual core 64-bit (Intel 64) Pentium CPU with Hyper-Threading. The first model, the Extreme Edition 840, was introduced in 2005 with a clock rate of 3.2 GHz. It is the same as the ...