I'm looking at two laptops. The only difference between them is that one has the older i7-4700 clocked at 2.4GHz and the other has the newer i7-4702 clocked at 2.2GHz. What I've read suggests that the newer i7 will run cooler, but a bit slower at the lower clock speed. Everything else being the same, I'm wondering what opinions would be on which cpu to choose. Also, are there other differences I'm not aware of? Thanks!