A smartphone processor is programmed to execute your commands/instructions you wish your phone to perform, in simple terms, the processor is the brain of the phone. Compare your mobile with a mini computer which executes your commands to the inbuilt apps to accomplish your desired tasks – dialing a mobile number, receiving a call, delivering your chat/SMSes, updating your mailbox, streaming videos, gaming and so on. Today, Smartphones come with a dual core or quad core or hexa or octa core processors. In all, the more the number of cores, the phone becomes more responsive and seamless in operation especially when multi-tasking. Today, leading companies like Qualcomm Mediatek, Exynos, Apple are manufacturing chipsets that can operate up to 3.5 GHz speeds.