Also: "The AMD Geode LX 8...@0.9w processor operates at a maximum power of 3.6W (TDP)"
The 0.9W figure was a normal usage scenario, not the worst case. Given that the Geode was running full steam all the time, it was probably running closer to 3W than anything lower - except when suspended, of course. The C7-M also has a cool feature with dual clock generators, which means it can change to 1GHz and 400MHz back in forth in one clock cycle - this saves a good amount of power. Probably all laptop CPUs nowadays(even Atom) take thousands of cycles to do that and they're stalled for most of that time: http://www.via.com.tw/en/products/processors/c7-m/twinturbo.jsp If the VX855 is not consuming much power, I would expect the XO-1.5 to actually have a better battery life. Best regards, Tiago Marques On Mon, Jul 20, 2009 at 5:19 AM, Richard A. Smith<rich...@laptop.org> wrote: > Carlos Nazareno wrote: > >> This has a power consumption of 3.5W which is significantly higher >> than the AMD 0.8-1.3W of the XO-1's AMD Geode LX 700. This is why I >> was asking about battery life -- it's a concern for using the XO with >> common tasks like as a mobile e-book reader. >> >> I'm pretty certain there's going to be a hit on battery life compared >> to the XO-1, but I'm pretty excited about the faster chip + upped >> memory as this now means that the XO will now be able to surf sites >> heavy with AJAX and Flash as well as be able to watch Flash video >> within the browser such as on sites like YouTube -- something not >> decently possible with the XO-1. > > Power is a curious animal. Quite often it works very different than you > would expect. > > The peak power draw of the XO-1.5 will be quite a bit higher than the > XO-1. However, the C7 can enter much lower power states than the Geode > could and it can enter them automatically and quickly. Until we measure > it we just don't know. > > -- > Richard Smith <rich...@laptop.org> > One Laptop Per Child > _______________________________________________ > Devel mailing list > Devel@lists.laptop.org > http://lists.laptop.org/listinfo/devel > _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
