If you're considering a MacBook RAM upgrade, here's a sure way to find out if your current system would benefit from installing more Apple RAM. Go to your Applications folder in your Finder window, and look for the Utilities folder. Inside this folder, you will find a handy application called the Activity Monitor. Double click on this application and find the System Memory option at the bottom half of the screen. You can also do a search for Activity Monitor in your Spotlight.
You will find terms used for Free, Wired, Active, Inactive, and Used. The pie chart provided to the right will indicate how much is allocated to each of these terms. The important one to note is Free Memory. If you discover that your pie chart has less than 25% allocated to free memory, it is likely that your MacBook could benefit from an Apple RAM upgrade.
Pay Attention to Page Outs:
Page outs happen when your system has to write information from RAM onto your hard drive because your RAM is full, also called Virtual Memory. This is a sure indication that by adding more MacBook RAM from Ramjet, you should see a substantial increase in your system's speed and overall performance. Using physical RAM rather than relying on Virtual Memory will also save the life of your hard drive, and is faster than Virtual Memory. These are some memory upgrade options for your MacBook machine, organized by Model Identifier.