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How does a video card send graphical information from a computer to a monitor?

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computer graphics The Utah Teapot, a standard graphics image used to benchmark computer systems.

A video card functions by processing graphical data from a computer to generate a video signal suitable for a display, such as a monitor.1

The process involves the graphics processing unit (GPU), which performs the complex mathematical calculations required to render three-dimensional models, apply textures and lighting, and determine the specific colors of individual pixels. Once the GPU completes these calculations, it organizes the data into finished images known as frames. These frames are then transmitted as a video signal to the monitor, allowing the visual output to be displayed to the user.1