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by schmorptron·4y ago·view on hn ↗
Hey nrp, I recently saw this video [1] which showed some major battery life differences between the i5 and i7 for Alder Lake which really took me by surprise. (22% battery on the i5 vs 38% on the i7 after a couple of hours of playing video)

Is the difference similar on the framework laptop, and if so, is this a driver problem for the i5 / better under Linux and expected to improve as big.little utilization gets more robust or just a case where race-to-idle really hits? Would love to hear professional input on this since you've probably worked pretty closely with these cpus in the last few months!

[1] https://www.youtube.com/watch?v=F-y8ElW473s

1 comments
We've seen battery life be roughly the same for the same workload (MobileMark) on i5-1240P, i7-1260P, and i7-1280P. It's unclear where the major difference comes from in that video, but I would guess the laptop maker has other hardware or software differences between the two laptop SKUs.
Awesome, thanks for the info!