Well, the G5s and last-revision G4s can run at half or quarter speed. Earlier processors used a slightly different speed-stepping mechanism that wasn't directly calculable.FF_productions said:Pretty much answered the question...
Yeah, when it's running at REDUCED, your processor will run at half the speed: 1.8 ghz->900 mhz.
It gave me: 1800000000yellow said:You could always give:
sysctl -a hw.cpufrequency
A shot and see what you get.
It gives you the speed in Hz. It's also not terribly accurate, especially on 12" 867MHz PowerBooks, for some reason. On all of my computers, it's always only reported the stock speed.yg17 said:It gave me: 1800000000
So either my computer is really, really, really fast, or it's giving me the number in a really small unit that needs to be coverted to GHz.
yes. this sosrta thing started around when the 12" powerbook first came out I think. the 867 12" ran at 500 in battery save mode or whatever. 766 sounds right for a 1.33.matticus008 said:Getting exact figures is very difficult for PowerPC processors, but the speed is generally reduced to somewhere in the 700-800MHz ballpark on most "low power" modes for CPUs, and I'd assume that it would be somewhere in this range.
Edit: 1.33GHz G4 runs at 766MHz according to my developer notes.