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A comment on Ask HN: Why aren't laptops evaluated with a plot of performance vs. fan noise?. Parent comment

Re:Ask HN: Why aren't laptops evaluated with a plot of perfo... by scarface74 on Friday February 10, 2023 @03:37PM (#34745465)
To a first approximation, if the fan is going (and using energy) because the CPU is running hot under load (using energy), doesn’t that give you a hint about battery efficiency?
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Re:Ask HN: Why aren't laptops evaluated with a plot of perfo... by jononor on Friday February 10, 2023 @04:58PM (#34746518)
Two laptop model with the same CPU can have big differences in thermal design, which impacts a lot the fan noise but battery efficiency only in a marginal way.
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Re:Ask HN: Why aren't laptops evaluated with a plot of perfo... by a1445c8b on Friday February 10, 2023 @06:06PM (#34747241)
Sounds like you’ve just supported the point about fan noise being a good approximation for battery efficiency.
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