The Snapdragon 821 is a mobile processor developed by Qualcomm, designed to enhance the performance of smartphones and tablets. Released in 2016, it is built on a 14nm process technology, which allows for improved power efficiency and speed. The chip features a quad-core CPU, with two high-performance cores and two power-efficient cores, enabling better multitasking and overall device responsiveness. This processor supports advanced features such as 4K video playback, Quick Charge 3.0 for faster battery charging, and enhanced graphics performance through its Adreno 530 GPU. The Snapdragon 821 is commonly found in high-end devices, providing users with a smooth and efficient mobile experience.