use Activity Monitor, find it in Applications/Utilities, in order to check at any time what is using the most ram, processor cylces and more ..![]()
Exactly! Don't guess, just look. You can sort by CPU load, memory, etc. Also, the fewer PPC processes you run the better. In my experience there is a large increase in performance going from 512 MB to 1 GB. Your observation of Activity monitor can clue you in on whether or not going to 2 GB was worth it. If you are running Parallels or have a big iPhoto library, or want to be able to absorb the Safari memory hog, then go for 2GB.