How to Find out how much Memory your Mac has
STEP 1. First you have to open the Apple menu by clicking the little apple icon in the upper left corner of your Mac screen.
STEP 2. Now you have to click on About This Mac.
STEP 3. Then you have to look for the Memory line.
That’s it. Now you can view the RAM of your Mac. If you found the figure in kilobytes then simply divide it by 1,024 so that you can find the RAM of your Mac in megabytes. In this way you can find the how much memory your Mac has.