With Mac models featuring Thunderbolt you can attach an external GPU, but those Macs are recent models.
In the categories below we explain which components can and can't be upgraded.
Here's a run down of the different post Intel-switch Mac Book upgrades you can carry out according to the model: 2009 13-inch Mac Book Pro The Retina Mac Book is not very repairable at all.
If you want to find out about the few things you can change read this.
Now let's talk briefly about what can't be upgraded or hacked.
Put simply, it's often not possible to upgrade the CPU in a Mac, or its GPU (that is, the graphics card).
You can also find out what kind of RAM you might need using Crucial's system scanner.
Wondering about how much RAM your Mac can actually take? Plus, we have this article about How to install extra RAM memory in a Mac.
You can swap out a dead Super Drive, for example, or a cracked screen for a replacement.Look here first: Best tools for repairing and upgrading i Phones & Macs If you don't want to do something as drastic as upgrading your Mac, read about how to speed up a slow Mac here.Please note, first of all, that this guide doesn't cover pre-intel Mac models.Read next: Mac Book buying guide 2017 | Mac Book deals 2017 In all Mac Book models the processor is soldered onto the motherboard and not upgradeable.RAM is soldered to the motherboard and cannot be upgraded.