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The original was posted on /r/linustechtips by /u/nuk37x on 2025-07-22 18:39:46+00:00.
So I just watched Linus’s new video, “Fixing My Employee’s PC.” The video is about one of his employee’s PCs constantly lagging and stuttering during games — it was really bad while playing. At the end, the issue turned out to be that XMP wasn’t enabled. The RAM was running at 2133MHz, and after enabling XMP, it jumped to 3200MHz and fixed the problem.
I know that enabling XMP makes memory run faster. (But i don't have any sturrinng of lags at all) I’ve been running my RAM at 2133MHz for about 2 years now. I'm on an AM4 system (Ryzen 7 3700X) with 44GB of DDR4 RAM.
The reason I’ve been running at 2133MHz is because I started with just one 8GB stick of 2666MHz RAM. Over the next 1–2 years, I gradually added more RAM.
So right now my setup has
2x 16GB sticks at 2666MHz
1x 8GB stick at 2666MHz
1x 4GB stick at 2400MHz
I know the frequencies don’t perfectly match — all of these were bought cheaply from Facebook Marketplace — but since I use Adobe After Effects a lot, my main goal was having more RAM to allocate, not higher speed. That’s why I didn’t care much about the bus speed.
Now I’m wondering: would enabling XMP and removing the 4GB stick actually make a big difference? Or would the speed improvement only be noticeable if I upgraded everything to something like 3200MHz?
I don’t play games at all — this PC is mostly for Adobe apps like After Effects.