Thread: Overclock the N900?
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MONVMENTVM is offline MONVMENTVM
2010-06-30 , 22:15
Posts: 145 | Thanked: 91 times | Joined on Jun 2010
#4564
Originally Posted by Matan View Post
Your data does not support your conclusion:

The CPU took 41*560=22960 units of energy to calculate pi at 600MHz, but only took 25*736=18400 units to do the exact same job at 1000MHz, so was, in fact 20% more power efficient at 1000MHz.
Hmm... that's not entirely true. It took 560mA to calculate pi, which finished after 41 seconds, AND to stay in idle mode for another 19 seconds. On the other hand it took 736mA for calculating pi at 1000MHz, which finished after 25 seconds, AND to stay in idle mode for 35 more seconds.

In both cases the test time was 60 seconds. The faster the cpu was, the faster it finished the calculation of pi and therefore was able to spend more time in idle mode until the 60 seconds finished. But as you can see even if it takes less time to finish the calculation and get into idle mode at 1000MHz it's still consuming more power overall.

Edit: But this shouldn't shock anybody... it really would be paradise if we could overclock by almost 100% and save battery at the same time ^^.
Last edited by MONVMENTVM; 2010-06-30 at 22:22.