High page file usage is the main sign you’re hitting the 16GB ceiling.

Yes. If your system is swapping to disk (page file), that’s the tell. But it’s not the only one.

When games start stuttering, especially after you’ve been playing a while, or you see frame time spikes that don’t match GPU load, check your RAM usage. If it’s hovering at 14-15GB and the page file is active, you’re out of physical memory.

Other quick signs: alt-tabbing becomes painfully slow, or your system feels sluggish after exiting a game. Task Manager will show “Hard Faults” spiking on the Performance > Memory tab. That’s the OS frantically shuffling data between RAM and your SSD—and no, an NVME drive doesn’t magically fix this. Page file I/O still introduces latency.

16GB is still fine for most games today, but a handful of newer titles (like Star Citizen, Cities: Skylines II, or modded Skyrim) will push past it. If you’re regularly seeing those symptoms, you’re the guy who should have bought 32GB.

Future you would probably appreciate not having to close every browser tab before launching a game.