I'm looking at upgrading my well ancient AMD Athlon 1Ghz. It has served me well, but doesn't really cut it anymore (e.g watching HD movies and encoding).
The thing is it runs quite warm. Maybe over 60 degrees constantly and has probably been on 99% of the time for the last 5-6(?) years. I'm a bit fed up with the heat it generates in the bedroom and I'm also concerned by the electricity consumption.
Could anyone give me an idea of the sort of wattage that the 805 uses at stock and overclocked speeds. I guess the 805 is not one of the greener CPUs, so could anyone suggest one (maybe the AMD64, AMD X2 or Core Duo?)
I hear the AMD64 have some technology which enables it to underclock when idle thereby saving electricity and slowing fan speeds. Do Pentiums have this tech (specifically the new Core Duo)?
Cheers for answering any of my questions.

As you could see by my current processor I've been out of the loop for a while and hope to upgrade soon.