this post was submitted on 20 Feb 2026
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Unused ram is wasted ram. Change my mind
This applies when RAM is used as temporary cache or something that can be instantly freed the moment it is needed otherwise. This doesn't really work for justifying higher RAM use by KDE, unless you would never need that RAM for anything else anyway.
I use KDE because it is good, though. Also I don't think KDE even uses more RAM than other DEs that are designed to be lightweight. Last time I compared, it used the same or less memory as LXDE.
Firefox without any website loaded uses more RAM than a full Plasma session.
And KDE can be even more efficient if you go into the settings and tweak things a bit, turning off some unnecessary features that are on by default.
Which features? Asking because I switched recently to Linux.
The difference being that in the one of those cases you still need to open a browser instance before you are able to browse the web.