Thinkpads Forum

it is said that the new Core Duos are low power consumption processors and Intel makes grand claims that you'll be able to run your laptop for longer on the same amount of batteries with the Core Duos.

However, I'm wondering if anyone can comment on the battery life of an X40-series TP as compared to an X60-series TP. I'm rather concerned that the X40-series TP will last for a much longer time on batteries (as well as being cooler). I say that because the Pentium M processors can be undervolted to conserve power and reduce heat. The Core Duos can also be undervolted, but only down to 0.95v (which is nothing compared to the 0.6v most Pentium M's run at on their lowest multiplier).

Having said that, can anyone with an L2300 or L2400 Duo tell me what the default voltage for the each multiplier is? I'm wondering just how much of a difference dropping to 0.95 volts would make.

Thanks.

This isn't making intuitive sense. So, the L2x00's power consumption floor is .950 volts. Apparently, that's the exact same floor as all other core duo's. So no one is getting lower than .950 volts and the L2x00 series isn't unique in being able to reach .950 volts. And yet the the L2x00 series are supposed to be low voltage...which maybe they are for higher clock speeds. Is intel possibly using a mis-nomer and the "low-voltage" processors are actually "low-wattage" processors? Is it possible they have a lower amperage than the T series duos?

I have no idea. I just wish there were a way to unlock the lower voltage limit because I'm sure they'd go down to around 0.6v nicely.

Antioch wrote:I have no idea. I just wish there were a way to unlock the lower voltage limit because I'm sure they'd go down to around 0.6v nicely.

Glad to hear your intuition is more accurate than those pesky Intel engineers

Seriously, though, if we can underclock the processor more the .3v won't make much of a difference.