8GB vs 4GB on the MacBook ProĤGB of RAM is a good amount but 8GB is better. Anytime you can avoid using virtual memory your Mac will perform faster since it does not need to access memory contents from the slow spinning hard drive, remember the default HD speed in a MacBook Pro is a rather slow 5400 RPM, the speed of RAM blows this away. I have a ton of apps open right now and I’m not even close to hitting virtual memory (you can read more about virtual memory in Mac OS X here). This is what I see now in Activity Monitor:Īs you can see, there are no “Page outs” (the movement of data from RAM to hard disk). Why? RAM is fast and virtual memory is slow, with 8GB of RAM the threshold to hit swap is significantly higher. Yes, it is noticeably faster especially under heavy app usage and system load. So now I’ll try to answer some common questions about having a Mac with 8GB of RAM: From start to finish it takes maybe 10 minutes at most. Installation is so easy it’s barely worth mentioning, upgrading RAM in the MacBook Pro is a matter of undoing a few screws on the bottom of the Mac, lifting off the aluminum case, removing the old RAM, and popping in the new memory.
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