Intel Core i7 3667U

An Ivy Bridge U-series i7 with two cores and four threads at a 17W TDP, the 3667U ran at 2–3.2GHz — built for the thin-and-light laptops Intel was increasingly targeting with its U-series lineup.

Its 22nm process brought efficiency gains over Sandy Bridge, letting it hit a lower power envelope than the previous generation's mainstream chips while keeping comparable clock speeds.