@Crumb
C3 are waaaay slower than ppcs... they are waaaaay slower than celerons at the same clock rate.
Yes, they are, but that wasn't the point I was making. You'll note I was responding to KennyR's assertion that the last fanless x86 chips died with the Cyrix 300 and the P2.
For better performance you'd need to look at the mobile models from both Intel and AMD.
Then you have the various statements that high end PPCs don't need any cooling, when in most cases they need a great big heat sink and active case cooling instead. Expensive silent case fans are not the same thing as no fans at all.
That's not to say PPC's don't run cooler that x86 chips cycle for cycle, but the issue is often exagerrated.
Incidentally, I note that the "more powerful cycle for cycle" argument has been rolled out again. While this is true, it's usually irrelevant. the comparison that really matters is "performance/price" because we all know we shouldn't pay any attention to cycle figures. :-P