"Since publishing our Ubuntu power tests, where we had monitored
the power consumption of the past six Ubuntu releases going back
two years on a laptop, we've had repeated requests for a power
comparison between Windows and different Linux distributions. Well,
in this article are the first set of results from that testing.
We've compared the power consumption of Microsoft Windows XP,
Windows Vista, Fedora 7, and Ubuntu 7.10.
"For these tests we hadn't used the Lenovo ThinkPad R52 notebook
again, but had turned to an older hardware configuration..."