this post was submitted on 11 Mar 2026
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I got a free, going to be recycled, dell with 8gb of ram from work. I threw in an nvme and installed Linux. It's not the lightest Linux install, but it is Arch, so definitely on the lighter side. I idle at under 1gb and under normal use don't break 2. I do some coding which uses more but nothing super crazy. MacOS probably uses a little more ram, but it's not Windows. I'd wager than the vast majority of people don't come close to using all of that RAM, and power users are going to get hardware for the task, and this isn't it.
Under 1GB on a modern build is pretty light. I run CachyOS and I'm pretty sure I idle at significantly more than that. Though I honestly haven't checked, and don't really want to close everything out to find out haha. I do know I'm currently using more than 8GB and not doing anything super heavy, but I do have multiple programs running. And multitasking is always going to be a killer for a system with low RAM limits. There is a reason my laptop has 32 and my desktop has 64.
I did just check and I was wrong. I idle at 1.6GB. I may have been thinking of a single app I had open when I looked the other day. I did just open Firefox and it took about a gig. Opening about 20 tabs and navigating to different sites did Bum it up to about 5gb. So yea, 8 is on the lower end, but it's usable and I'd bet most people would be fine. Throw in things like swap and high speed storage, I feel most people wouldn't notice. Definitely not enough for high usage though.
I miss when 4gb was good enough.
I run CachyOS with Gnome and it idles at just under 2GB