I am slightly confused with the clock speeds? Is doing work fast and then going to sleep(or lower power) saves more power or doing things at slower frequency? How does 8 bit microcontroller fare in this?
Doing work EFFICIENTLY and then going to sleep saves power. Fast can mean increasing clock speed, whicih wastes power. Efficiently means single-cycle instructions, fast interrupt response times, native bit manipulation, and waking up from sleep quickly.
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