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How to calculate the energy consumption?

Last response: in Laptop Tech Support
April 15, 2014 3:59:56 PM

I wonder if I should only take on account the 90W that is in the adapter or if I need something else... 90W looks a low energy consumption, although it comes with a 4500U Intel processor.

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May 18, 2014 7:14:02 AM

Moreover, is there a big difference if I use "high performance" instead of "energy star"?