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I'm a big fan of the U series cpus: They consume very little energy, which leads to less overheating, less fan noise, and longer battery life.

(Conversely, the H series cpus consume a lot of energy: the laptop overheats quickly and has to slow down anyway.)

Now it makes sense why may 2018 MBP always gets hot while my previous 2015 only rarely does.

Thanks to constant throttling. Which makes an i7 feel like barely an i3. (i7-7660U in an XPS 13, at least)