When I search for information about this, I come up with articles like [1]. But none of the data is provided and the analysis isn't exactly...rigorous, to put it charitably.
EDIT: Why in the world has this been downvoted to -3?! This is a reasonable comment to make complete with an example. If you disagree, blindly downvoting isn't informative of anything except that you don't like a comment.
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1. https://appleinsider.com/articles/18/04/30/2016-macbook-pro-...