Do I need more memory if memory pressure is alway yellow?

[jagooch]

Activity monitor alway shows the my memory pressure is "yellow" on my new iMac 27" with 8GB RAM. Swap use hovers around 1.5GB.

Does this mean that I need to buy more RAM? Any way to know if 16GB will do the trick, or do I need 32GB?

Screenshot of Activity monitor attached. I noticed that Safari grabs gobs of memory, sometimes 1GB for a single web page. That is pretty crazy!

 

[keysofanxiety]

Worth turning it off and on again with reopen windows when logging back in unticked. Restarting will clear the RAM.

Beyond that, it's probably time to add some more RAM. The more RAM you add, the more macOS will try and use, though it'll be unlikely to page to disk as it current is. 16GB should make a real positive impact though 32GB wouldn't hurt at all, providing you get it at a reasonable price.