How to Find Out How Much RAM Your Mac Has

Open the Apple menu (click on the little apple in the upper left corner of your screen), and choose either About This Macintosh or About This Computer.
Look for the Total Memory line.
If the figure is in kilobytes (K), not megabytes (MB), divide that figure by 1,024 to find out how many megabytes of RAM your computer has.
VPS Hosting