Tossing up between an i5 and an i7 for someone who does both programming and devops.

Languages used are Go/C/C++. Go builds are spectacularly fast so I don't think I'll notice a difference between i5 and i7. For C/C++ some projects I work on are large, for example the Linux kernel, but again I don't think I'll notice a huge gap between i5 and i7.

I think what interests me in the i5 versus i7 aside from i5 being cheaper is that the i5 might be more energy efficient than the i7; is that even a valid claim?

Also really hoping that some day they'll release a laptop keyboard with the inverted-T layout like Apple laptops.