The Qualcomm Snapdragon 821 is a mobile processor designed for smartphones and tablets, released in 2016. It is built on a 14nm process technology, which allows for improved performance and energy efficiency compared to its predecessor, the Snapdragon 820. The Snapdragon 821 features a quad-core CPU, with two high-performance cores and two power-efficient cores, enabling smooth multitasking and enhanced battery life. This processor supports advanced features such as 4K video playback, Quick Charge 3.0 for faster charging, and support for virtual reality applications. It also includes the Adreno 530 GPU, which provides high-quality graphics for gaming and multimedia experiences.