Built on a 14nm process, Samsung's chipset allows similar or higher clockspeeds (hence performance) with less power consumption, which by the way means it's easier to cool as well. In the end, the Galaxy S6 is powered by a beastly octa-core processor with four Cortex-A57 cores ticking at 2.1GHz and four Cortex-A53 "efficiency" cores at 1.5GHz. An octa-core Mali-T760 GPU and 3GB of RAM complete the tally.