Two speeds are listed because two speeds are possible (Power Stepping) for the Pentium M processor.. See the discussion at the link below. AFter clicking on the link, scroll to the lower part of the page to read "Callendor's" first response.:
http://www.experts-exchange.com/Hardware/Microchips/Q_21839385.html
Hope this helps.
Grif
My friend's notebook has been running slow so I had her check the see if she had enough memory. Here's what she got from right clicking My Computer and selecting Properties:
Intel Pentium M Processor 1.60 GHz
797 MHz, 504MB of RAM
My question is why is it showing CPU speed of 797 MHz instead of 1.60 GHz?
Thanks!!

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