GPU Tweak II is a software utility designed to optimize and monitor the performance of graphics cards. Developed by ASUS, it provides users with tools to adjust clock speeds, memory usage, and fan speeds, enhancing gaming and graphic-intensive applications. The interface is user-friendly, allowing both beginners and advanced users to customize settings easily. It also features real-time monitoring of GPU performance, temperature, and usage, ensuring that users can keep track of their system's health and performance during demanding tasks.