Okay, Chelsea, that's the last time you get to ask the "which is faster?" question đ Look. If you've got two computers and you run exactly the same program on both, play the same game, or whatever, and one is twenty minutes slower than the other, then you can say, "That one is too slow, I want the faster one."
But we're talking about processors and such where, if one machine has one such processor and the other the other one, the difference, in most cases, will likely be a few seconds. We're talking about needing a good stopwatch to tell the difference. Especially if all other things (like RAM) are equal. I promise that whatever version of the Air (or Pro) that you get, with whatever processor, it will be screaming fast compared to your old HP. And in most cases, the speed you see will have more to do with SSD (if you get the Air), with those 8gb RAM and, very likely, with the Apple OS (vs. Microsoft) which is so integrated that programs can run very smoothly and you don't have to wait for things like a virus check.
I promise, whichever computer you get, it will be plenty fast. And I promise that if you get the "slower" (cheaper) processor you won't even realize that it's slower. Okay?
Now I understand that this is a big decision. And I know you're worried and nervous and don' t want to make a mistake on this, but you've not only got all the answers you need to make an informed decision, but you, yourself, know what you want. Commit to it, get it, and when it comes, enjoy it! Life's too short to spend it dithering đ Go for it. And remember, if you don't like what you get, you can send it back any time before day 14. You're not selling your soul. You're just buying a computer. đ