Intel's Core Ultra 2 Chip Posts Nearly 24-Hour Battery Life in Lunar Lake

... and Microsoft (probably Linux too) will throw it all away with some tiny coding mistake.

Where are all those people who for years (or since M1) were claiming that x86 is dead because ARM ISA (magically) offers significantly better energy-efficiency than x86 ISA.

Of course they ignored things like node advantage, but who cares? ;)

Meanwhile industry veterans were claiming something different and turns out they were right

https://chipsandcheese.com/2021/07/13/arm-or-x86-isa-doesnt-...

Asking which - x86 or ARM is faster/more energy eff is like asking which syntax (letters) is faster - syntax of Rust, Java or C++?

And same as with CPUs - everything is up to the implementation - compiler, runtime/vm, libraries, etc.

Probably not, Intel does a pretty decent job regulating power consumption as long as you don't modify the power profiles or fuck with ACPI. Distributions or third-party nagware might ruin the battery, but that goes for any laptop that's required to install Teams or McAfee.

Loading up powertop on my i7 6600u reports an idle draw of 5.5w with my browser open playing music. I think that's pretty damn good, for an old-ish laptop with mitigations enabled on Linux.

Battery life is based on playing a 720p video file so most of the expended power will be in the video decoder and screen not the actual CPU. It's also dependent on the battery size in the laptop being tested so pretty much impossible to compare on any like for like basis.

Honestly, I'll believe it if I have one in my hands.

So far I have a Surface Laptop 7 with the Snapdragon which has blown me away in terms of battery life. I'm talking 10+ hours watching video on full brightness.

And I'll happily sacrifice 50% of that for a better screen and a more powerful GPU.

The worst part today Windows 11 ARM is that on WSL `brew` is not supported.