David Lee is upset about the Intel i9 in the new MacBook Pro 15 throttling when using its cores to the fullest. He shows us this happening in the video below. And then he goes as far as putting it in the freezer for testing. (I like this guy.) Bottom line is that the 2017 MacBook Pro i7 is faster than the 2018 MacBook Pro i9....unless you put it in the freezer. At least are you Alaskan Apple fans are in the clear. Check out the video. Dave2D review of the 2018 15" Apple Macbook Pro. The Core i9 runs hot and throttles harder than any of the MacBooks I've ever used.