Intel Core i7-1355U Processor

The Core i7-1355U is a 15 W ultraportable processor from Intel's 13th generation Raptor Lake-U line, introduced at CES 2023. Its hybrid layout leans heavily on efficiency cores, pairing just two performance cores with eight efficiency cores, a split chosen for thin-and-light laptops where responsiveness and battery life matter more than sustained all-core throughput. Turbo behaviour does most of the work here: the part idles inside a 15 W envelope but can pull up to 55 W in short bursts, so measured performance depends heavily on the cooling design of the laptop it ships in.