Näyttöohjain

Näyttöohjain, also known as a graphics card or video card, is a crucial component of a computer responsible for processing and rendering images, videos, and animations for display on a monitor. It takes data from the central processing unit (CPU) and converts it into a signal that the monitor can understand, allowing users to see the graphical output of their computer.

Modern näyttöohjain units often contain their own dedicated memory, referred to as video RAM (VRAM), which is used to store textures, frame buffers, and other graphical data. This allows the GPU to access and manipulate this information rapidly, leading to smoother and more detailed visuals. The complexity and power of a näyttöohjain can vary significantly, from integrated graphics found on many CPUs to high-end discrete cards designed for demanding tasks like gaming, video editing, and 3D modeling.

The performance of a näyttöohjain is measured by several factors, including its core clock speed, the number of processing cores (often referred to as CUDA cores or stream processors), memory bandwidth, and the type and amount of VRAM. These specifications directly influence how well a computer can handle graphically intensive applications and games, affecting frame rates, resolution capabilities, and the overall visual fidelity of the displayed content.