For nearly ten years, Intel's Core i3, i5, and i7 brands have held strong in the PC and laptop space. Everyone immediately gets the idea of a hierarchy, with Core i3 at the entry-level and Core i7 at the top end. You don't necessarily need to know that you get two cores and HyperThreading with an i3, and four cores without HyperThreading if you choose an i5. You don't need to know clock speeds, cache sizes, or manufacturing processes - what matters is that when all capabilities are taken into consideration, moving from a lower number to a higher one gives you an incremental boost in performance. Within each generation, all chips work on the same motherboards, use the same kind of RAM, and have the same architectural advantages - with one key exception. Watch the video for details.