A graphics card, also known as a video card or GPU (Graphics Processing Unit), is an electronic device that is designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device. Essentially, it's a piece of hardware that allows your computer to process and render graphics-intensive tasks such as gaming or video editing more efficiently by offloading some of the workload from the central processing unit (CPU) to its own dedicated processor.