Do you happen to know the IPC/Watt of Cyrix compared to Turion e.q. ?
:lol: As if CPUs had nice clean IPC numbers. :mrgreen:
But last I knew...
Cyrix/VIA are in a low-end class (almost) by themselves. There's Transmeta too. Their IPC sucks. Their clock is slow. But they put out low W. Go with a low enough clock speed and you can run them totally fanless.
AMD and Intel's mobile chips are much higher end. Their IPC is way better, their clocks are way better, but their W is designed for active cooling, even if with small HSF, pipes, whatever.
The only real exception to this that I know of from the Intel/AMD camp is the Ultra Low Voltage Mobile Celeron from Intel. It's expensive as hell (for its speed) but has Intel's good IPC. It's clock is typically down at (or well below) the Cyrix/VIA level, but with it's good IPC performs equally to the higher clocked PoS. But best of all it's W is very low
and you can put it in a dependable platform.
However, theoretically, you might be able to underclock and undervolt a normal AMD/Intel mobile chip to run fanless too.
To be perfectly honest, I'd like to know a lot more in detail about all of the above. I haven't quite uncovered the right source to look for good information on these things yet. If anyone could point me in the right direction...