Remember that the processor speed doesn't matter nearly as much at having a more RAM for things like Photography. If you are a photographer and like to have applications with massive libraries like Lightroom open in unison with applications like Photoshop with working files bigger than 1GB then having more RAM will allow you to do this without bogging down your machine, applications crashing, or notifications that your computer is out of memory. This is something I've always done on new computers but this can also be done on older machines. Simply put, RAM is your computer's ability to multitask applications and files. Please note that the Genius Bar at an Apple Retail store will never ever, under any circumstances, perform any upgrades on your machines after it has already been purchased so be prepared to do this yourself or call over your techie friends for help in your upgrades. Don't go into the Apple store and expect anyone to help you with this.

The only catch is that you have to install it yourself.

Companies like Other World Computing have been a great resource to getting access to this same type of hardware for decades at much cheaper prices. It's easy to install, doesn't void your warranty, saves money, and speeds up your new or used computer. Remember that Apple isn't making unique special 'Apple RAM,' but is installing third party RAM purchased from a handful of other hardware companies just like they do with their Intel processors that can be found in PC's. I've been urging people NOT to purchase RAM from Apple since my days of working for Apple at the genius bar. This article is simply why I wouldn't recommend spending more money to do it through Apple and the reasons why.

Customize ram 2017 mac pro