Question about the Serato DJ system requirements

I am not sure about the Serato DJ system requirements, as the new laptops use Intel i3, i5, and i7 processors and no longer Core 2 Duo. So I was going to get a new laptop if I decide to get the DDJ-SX as I am still considering the Aero. But what would be a good processor for the Serato DJ system software. i3,5 or 7?