GPU/Graphics Card

A GPU (graphics processing unit), also occasionally called VPU visual processing unit), is a specialized electronic circuit designed to rapidly change and alter memory to accelerate the making of images in a frame buffer to display it. GPUs are used in embedded systems, mobile phones, personal computers, workstations, and game consoles.

Modern GPUs are very efficient at manipulating computer graphics and image processing, and their highly parallel structure makes them more effective than regular CPUs for algorithms where processing of large blocks of data is done all at the same time. In a personal computer, a GPU can be present on a video card, or it can be integrated into the motherboard.

PCI-E 16x slots located on the motherboard are where you can insert the graphics card into. Integrated GPUs are usually cheaper than dedicated graphics cards, but are not as compatible with the system. The GPUs of the most powerful class are typically dedicated graphics cards and can usually be replaced or upgraded with relative ease, assuming the motherboard is capable of supporting the upgrade.

Integrated GPUs also have little to no memory themselves and rely on the computer's CPU and RAM to do things. A few graphics cards still use regular Peripheral Component Interconnect (PCI) slots, but their bandwidth is so limited that they are generally used only when a PCIe or AGP slot is not available.

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