I'm tryin to look at the voltage/heat differences between the Mobile Duron 1GHZ, and the Mobile XP 1600+.. since the XP's are on .13 micron, i would think it would run cool enuf to swap with the 1ghz duron in my lappie right now.. =/... any1 got a site that has a list of the two proc's volt and watts output??? <shrug>