Core Duo 2 vs. Core Duo - Battery Power

Hey all,
I was wondering about battery power. Yes, they just upped the MB's so soon after they came out ut whatever, the only two things I'm concernend about are architecture, and battery power.
After I ran the fan augmentng firmware update I'm lucky to get 3:40 out of my MB. And they were advertised at what...5? The new ones are advertised at 6. So what do you all think, any real difference there?

Actually the battery power of a MacBook was advertised at around 4. I think you might have been getting mixed up with battery power, and how many times faster the MacBook Core Duo and the MacBook Core 2 Duo, are faster than the iBook.
The MacBook Core Duo is 5 times faster than the iBook. The MacBook Core 2 Duo is 6 times faster than the iBook. Also I am not quite sure about the battery life on the C2D's.

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    Have you repaired permissions? (/Applications/Utilities/Disk Utility.app)
    Are you sure you're using JDK 5? (Applications/Utilities/Java/Java Preferences.app or output of $ javac -version)
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    Its driving me crazy!!

    This is a hardware problem or glitch with the older Core 2 Duo processor, it was industry wide problem, there is no real fixes for it, other than to turn power saving features off and put the processor at max performance on battery. 
    Regards,
    Jin Li
    May this year, be the year of 'DO'!
    I am a volunteer, and not a paid staff of Lenovo or Microsoft

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