The hardware component essential for running graphics-intensive applications is the graphics processing unit (GPU). GPUs are designed specifically to handle rendering visuals and processing large amounts of graphical data efficiently. They accelerate image processing for tasks in gaming, graphic design, and video editing, enabling smooth and high-quality playback. As applications demand more visual fidelity and real-time rendering, the importance of GPUs has significantly increased, making them vital for users seeking optimal performance in visual computing.