Memory and a slow Mac

Fixes for a slow Mac and memory problems, such as memory pressure, swap, freeing up memory and how much RAM you need.

5 articles · Last updated November 3, 2026

November 3, 2026 “Your System Has Run Out of Application Memory” on a Mac — Save First, Then Quit Normally Before You Force Quit Mac says it has run out of application memory? Save, quit unused apps with Command-Q, and force quit only frozen apps.
November 3, 2026 What Swap Used Means on a Mac — Do You Need to Clear It? Check the Memory Pressure Color Swap Used on a Mac is data moved from memory to the startup disk. If Memory Pressure is green, a few GB is fine.
November 3, 2026 Is 8GB of RAM Enough for a Mac? — Check Your Current Mac with the Memory Pressure Color Is 8GB of RAM enough for a Mac? On an 8GB Mac, watch Memory Pressure while you work: green is enough, red means more.
October 31, 2026 How to Free Up Memory on a Mac — Quit Unused Apps That Use the Most RAM, and What Apple Says About Clearing It Free up memory on a Mac: sort by Memory in Activity Monitor, then quit apps with the Stop button. Apple’s view on RAM.
October 26, 2026 Mac Running Slow? How to Check Memory Pressure — What the Colors Mean in Activity Monitor Slow Mac? Check the color of Memory Pressure in Activity Monitor: what green, yellow, and red mean, and what to do.

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