this post was submitted on 08 Feb 2026
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Basically they don't. It is the scheduling pinning background processes to a subset of the cores leaving others free for foreground tasks that is what helps.
The E cores just give a convenient way to split them. They could have done the same thing on intel macs or any other computer that does not have e cores.
The big benefit to e cores is they are more power efficient for tasks that don't need performance.