| The key issue is one of power consumption. A Mobile (M) processor will use less power, generating less heat and providing greater battery life. So what you need to decide is how much you will be using the laptop on battery. If you typically go 3 or more hours then you want a mobile processor. In fact you may want to go with a Centrino. Centrino is actually a whole chip set that wortks with Pentium M processors to provide extended battery life. Generally twice that of regular processor.
I recently replaced an older Thinkpad T22 with a new T42 Centrino. on board equipment was similar, but I get more than 4 hours on the battery where I used to get barely 2.
One other issue to consider when choosing between Intel and AMD. Currently the Athlon 64 is the only 64 bit CPU available for consumers. When the next version of Windows comes out (either this year or next) this CPU will be able to take advantage of its advanced features. |