Knowing how to check RAM usage on a Mac is vital if you're having issues with performance, or want to avoid them altogether. RAM — or Random Access Memory — is vital to your Mac being able to run effectively, and if it's all being used up by applications or processes, you won't have enough memory to run other applications, leading to poor performance, lagging and crashes.
By knowing how to monitor your Mac's RAM load, you can identify when it is maxing out and what apps or processes are causing this. This can help you optimize what your Mac is doing, as well as troubleshooting performance issues when gaming, for example.
