Last year, Samsung launched their flagship Samsung Galaxy S6 using their in-house System-on-Chip, the Exynos 7420. This chipset is conventional in many respects – it's uses dual tiers of application processor cores, eight in total, plus an integrated modem and GPU in common with many competitors. However, where Samsung had an advantage is that the Exynos 7420 was manufactured at a 14nm process size at a time when many competitor chips were still being built to a 28nm process size and a few were at the 20nm size. The smaller the size of the chip, the less voltage that is needed to drive the unit and this is important because power consumption and heat production are in proportion to the square of the voltage applied. This meant that 2015's Galaxy S6 had a cooler, more battery efficient chip compared with the competition. In what seemed like the space of a few months, Samsung had the best mobile chipset on the market – designed and built in-house. This showed the world what the semiconductor business could do.