Surface Pro 3 Core i3, i5, and i7 will all have equivalent battery life

[Windows Central]

If you?re still considering picking up a Surface Pro 3, but the processor choice has you confused, you can cross one concern off of your list: battery life. It was only a few days ago that we learned exactly which Intel Core i3 and i7 processors would come with the device, greatly impacting everything from clock speed to graphics.
The rule of thumb in computing is that the faster and more powerful the processor is, the more battery it will consume. But not so fast.

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