Thread
:
Overclock N800 with new OS2008?
View Single Post
TA-t3
2007-11-29 , 15:59
Posts: 3,841 | Thanked: 1,079 times | Joined on Nov 2006
#
3
Bogomips != frequency. 388 equals about 400MHz with this CPU and operating system. The N800 will change the frequency at will, depending on the load (and sometimes it'll drop down the voltage too, all to save on battery). It also has to go down to a lower frequency when it's using certain DSP (digital signal processor) operations, because the DSP must run at a frequency which is linked to the CPU frequency. If the CPU frequency is 400MHz then the DSP frequency must be reduced instead of increased, or it would go above its design limit. Nokia had this table in a presentation posted here and elsewhere:
Code:
ARM DSP 400 133 330 220 266 177 164 85
As you can see, sometimes the ARM CPU frequency must be reduced in order to let the DSP run at its highest performance.
__________________
N800/OS2007|N900/Maemo5
-- Metalayer-crawler delenda est.
-- Current state: Fed up with everything MeeGo.
Quote & Reply
|
The Following 3 Users Say Thank You to TA-t3 For This Useful Post:
bunanson
,
deeteroderdas
,
fr4nk
TA-t3
View Public Profile
Send a private message to TA-t3
Find all posts by TA-t3