On Fri, Aug 03, 2001 at 09:24:55AM +0200, Sven wrote: > On Fri, Aug 03, 2001 at 01:08:00AM -0300, Peter Cordes wrote: > > Battery tech is getting pretty good. My friend got a 1GHz PIII > > laptop with 512MB RAM, and he says the battery lasts 3-4 hours IIRC. > > I asked him how toasty it got, and he said it wasn't very nice holding > > it in his lap... > > Sure, but was the processor actively working ? and what kind of battery does > it have. I guess > it was magnitudes higher that the one in the ibook, which only has a 42 > Watt/hour battery > (which makes it use ~ 8Watts/hour, there is noway you can achieve that on a > i386 box.)
Your units are incorrect. I think you meant to measure your battery capacity in watt hours (watts times hours, which is a unit of energy), and to calculate the energy usage as 8 watts. (watts = energy / time, using joules and seconds.) > Anyway, you can't forget that the G3 eats less that 5W of power, while the > 1Gz PIII > want around 15-20Watts, i think, that is when it is not being downstepped to > run ~300MHz > or such. And the duron case is worse, since it wants around 25-30Watts. What percentage of the total power is used by the CPU? How significant is that extra 10W for the CPU? -- #define X(x,y) x##y Peter Cordes ; e-mail: X([EMAIL PROTECTED] , ns.ca) "The gods confound the man who first found out how to distinguish the hours! Confound him, too, who in this place set up a sundial, to cut and hack my day so wretchedly into small pieces!" -- Plautus, 200 BCE
