the Pentium 4 was introduced at the end of 2000 with 1.4 and 1.5 GHz clock rates. Speed later reached 3.8 GHz. Pentium 4 chips were first built with 180nm process technology and subsequently ...

Intel unveiled the design of its Tejas processor in early 2003 with the intention of launching it clocked at frequencies of 7GHz or more ... the 90nm Prescott-based Pentium 4 521 was set at ...