Look, I don't think people know what they're talking about in this thread.

I've never read anywhere what people are saying here is true.

Every technology journalism regarding heterogeneous architecture points to smaller cores being power efficient, slower and fitted to background tasks, like OS, audio, internet browsing, etc. These cores are not suited to power hungry multithreaded workloads like people claim here, and the reason they exist is: because users spent 95% of the time with the processor on idle, and because it's a good choice to have lots of really small cores in the size of what could be two P cores when the processor already has lots of P cores, like 6 or 8.