An interesting piece of trivia: While processors have been heterogeneous for several years now, Intel formalized this idea starting with their Alder Lake generation of CPUs. Now, each CPU has some performance cores and some efficiency cores. They are known as P cores and E cores respectively. As one might expect, P cores are used when performance is the priority and E cores are used when battery endurance is the priority. More details here: https://wccftech.com/intel-alder-lake-p-core-e-core-detailed-golden-cove-offers-50-higher-single-threaded-hybrid-design-offers-50-higher-multi-threaded-performance/

I once read about using larger CPUs vs using smaller ones in the same chip. Why would we design such chips to be this way? Wouldn't it be advantageous to just use a larger, more capable processor?