The CPU monthly reference article from the English Wikipedia on 24-Apr-2004
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CPU monthly

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Below is a listing of Intel's best desktop mass market microprocessor on the first day of every month (with the newest at the top). This helps demonstrate Moore's Law.

Month Intel's best CPU Notes
January 2004 3.40Ghz Pentium 4
May 2003 3.20Ghz Pentium 4
April 2003 3.06Ghz Pentium 4
September 2002 2.8Ghz Pentium 4
August 2002 2.53Ghz Pentium 4
July 2002 2.53Ghz Pentium 4
June 2002 2.48Ghz Pentium 4