A new battery drain test on an Arch Linux-powered ROG Flow Z13 gaming laptop reveals that desktop environment bloat and excessive GNOME extensions significantly reduce overall battery efficiency.

Key Points

• Testing was conducted on an ASUS ROG Flow Z13 (2025) laptop featuring an AMD Ryzen AI MAX 390 processor and a 70Whr battery.
• A vanilla GNOME installation outperformed a KDE Plasma setup by 3% in battery retention over a one-hour 4K video playback test.
• Adding 10 popular GNOME extensions resulted in the lowest battery performance, draining 40 minutes faster than the vanilla GNOME configuration.
• The benchmark utilized the Arch Linux Zen kernel (version 7.1.3.zen1-2) and the upower command-line tool to track energy consumption and voltage.
• All tests were performed at 500 nits brightness with the system set to a Performance profile and a 93W TDP limit.

Why it Matters

These findings challenge the common assumption that Linux distributions inherently offer superior battery life compared to Windows by highlighting the impact of software bloat. Users should be aware that customizing desktop environments with numerous extensions can significantly degrade power efficiency, necessitating a balance between personalization and hardware performance.