The Power Supply Unit (PSU) is a critical component that converts electrical power from an outlet into usable power for the computer’s internal components. It ensures that each part receives the appropriate voltage and current, maintaining system stability and preventing damage. Selecting a PSU with sufficient wattage and quality is essential for reliable performance.

The Graphics Processing Unit (GPU), commonly known as the graphics card, is responsible for rendering images, videos, and animations. It offloads these tasks from the CPU, enhancing performance in graphics-intensive applications such as gaming, video editing, and 3D rendering. Modern GPUs have their own memory (VRAM) and processing cores, enabling them to handle complex calculations efficiently.

Understanding the interplay between the PSU and GPU is vital, as the GPU is one of the most power-demanding components. Ensuring that the PSU can supply adequate power to the GPU is crucial for system stability and performance.