Re: Which of these two should I get?
If you're going to use Linux, avoid both of them and get something with an Nvidia GPU.
Apart from AMD's driver performance being woeful, you'll probably only get a few years of use out of the computer before AMD stops making a Linux driver for the GPU. Then you'll be stuck with open-source drivers.
I try to treat the cause, not the symptom. I avoid the terminal in instructions, unless it's easier or necessary. My instructions will work within the Ubuntu system, instead of breaking or subverting it. Those are the three guarantees to the helpee.