FWIW, loaded battery life is intrinsically linked to the thermal / cooling aspect of CPU performance discussed in the article. Mechanically, CPUs are just simple resisters converting stored battery energy into heat.

Idle battery power is also interesting, and even the older Zen 1 had pretty good reduction in power consumption at idle (C1).

Intel still best on idle power use because of on package regulator, and still better powergating

Intel dropped FIVR for the Skylake generation[1], though it's back on Ivybridge[2].

[1]: https://en.wikipedia.org/wiki/Skylake_(microarchitecture)#Fe... [2]: Used to work there, played a minor part in enabling IDC to integrate the FIVR IP.

Sure, but how long does a laptop actually stay on idle and not a sleep state or low power state (doing something)?