Power consumption on Intel's Lunar Lake

Question

Greetings.

I have a question about battery life on Lunar Lake chips. I saw a lot of posts and comments here saying their battery life even increased after switching to CachyOS. I assume they were talking about AMD processors. Maybe I’m doing something wrong, because with TLP or power‑profiles‑daemon set to power saving and power scaling enabled, I actually get worse battery life around 20% less.

On Windows, I see idle power as low as 2.8W - 3.3W. On CachyOS, it’s 3.5W - 4.0W. A simple YouTube video on Windows uses 4W - 6W, while on CachyOS it’s 5W - 8W. Loading a new page on Windows takes 12W -15W, but on CachyOS it’s 18W - 22W. These are still fine numbers, but I lose about 1.5 - 2 hours of battery life on Linux.

Is this just how it is? That Intel chips are better optimized on Windows? Or should I try something else? I’ve heard about auto‑cpufreq, but TLP is supposed to be the go‑to tool, right? I also tried rcutree.enable_rcu_lazy=1, but that somehow made things worse and introduced mouse input lag.

Windows were debloated with Chris Titus Windows Tool
CashyOS: Linux 7.1.4-1-cachyos, niri 26.04 (Wayland), noctalia v5.0.0 (v5.0.0-beta.3-210-g79530a6290fb)

Posted Jul 27, 2026, 7:12 AM UTC

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