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Ryzen 4000 laptops promise to improve battery life to match Intel. https://www.anandtech.com/show/15624/amd-details-renoir-the-ryzen-mobile-4000-series-7nm-apu

• ben-schaaf 6y ago
  If you normalize for performance the ryzen 4000 laptops should have considerably better battery life than comparable intel models, at least while under load if not idle.
  • analognoise 6y ago
    ... Who would do that? Most people want to know how long it lasts on a charge. If it lasted 30 minutes but was the cheapest, literally nobody would say "If you normalize for cost, it lasts the longest".
    • ben-schaaf 6y ago
      How long it lasts on a charge obviously depends on what you're doing with it. Normalizing for performance gives you the efficiency of the system for getting work done. Compiling/testing software is part of my job, so whether a laptop can complete 200 compiles on battery power or 500 is something I care about. If you only care about how long a laptop can idle for under battery you might as well take a screenshot, print it out and you've got yourself a couple thousand years of 'battery life'.
      • analognoise 6y ago
        Good point, but by context, wasn't GP talking about the same load? If somebody says "The battery performance is poor" I don't assume they go from compiling all day to writing in Notepad when making the comparison - I assumed they meant "For the work the laptop was purchased for".