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VRAM, or Video Random Access Memory, is a specialized type of RAM dedicated to a computer's graphics card (GPU) to store and process graphics and video data. It stores things like textures, frame buffers, and other graphical assets, allowing the GPU to access them quickly and directly for tasks such as gaming, video editing, and 3D rendering. Unlike system RAM, VRAM is integrated into the graphics card and is not user-upgradable.

What VRAM does

Stores graphics data: VRAM holds everything the GPU needs to display an image on your screen, including textures, color data, shapes, and positional information.

Acts as a buffer: It serves as a temporary storage area, or frame buffer, where partially and fully rendered frames are stored before being sent to the display.

Enables fast access: It is specifically designed for graphics, using parallel architecture to allow simultaneous reading and writing of data. This is much faster than using the system's main RAM, which would cause performance bottlenecks.