Processor power efficiency, beyond Moores Law

This article focuses on improving processor power efficiency by a process of heterogeneous multicore design that switches off transistors that are not being used, and assigining individual specialised cores of a multicore processor to work at specific kinds of tasks so the unneeded functions at any specific time can be switched off so they aren’t using power.
Source: https://www.evaluationengineering.com/applications/embedded-system-design/article/21161575/heterogeneous-cores-turn-off-transistors-to-save-power