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Video Cards

1

A video card is an expansion card which generates a feed of output images to a display device.

In computing, the expansion card, expansion board, adapter card or accessory card is a printed circuit board that can be inserted into an electrical connector, or expansion slot, on a computer motherboard, backplane or riser card to add functionality to a computer system via the expansion bus.

A display device is an output device for presentation of information in visual or tactile form.

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2

Frequently, these are advertised as discrete or dedicated graphics cards, emphasizing the distinction between these and integrated graphics.

Awards: Worst & Best GPUs of 2019 | Gaming Video Cards by AMD & NVIDIA by Gamers Nexus

3

At the core of both is the graphics processing unit, which is the main part that does the actual computations, but should not be confused with the video card as a whole, although "GPU" is often used to refer to video cards.

A graphics processing unit is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device.

4

Most video cards are not limited to simple display output.

5

Their integrated graphics processor can perform additional processing, removing this task from the central processor of the computer.

6

For example, Nvidia and AMD produced cards render the graphics pipeline OpenGL and DirectX on the hardware level.

Advanced Micro Devices, Inc. is an American multinational semiconductor company based in Santa Clara County, California that develops computer processors and related technologies for business and consumer markets.

Microsoft DirectX is a collection of application programming interfaces for handling tasks related to multimedia, especially game programming and video, on Microsoft platforms.

Nvidia Corporation, more commonly referred to as Nvidia, is an American technology company incorporated in Delaware and based in Santa Clara, California.

7

In the later 2010s, there has also been a tendency to use the computing capabilities of the graphics processor to solve non-graphic tasks.

The 2010s was a decade of the Gregorian calendar that began on 1 January 2010 and ended on 31 December 2019.

8

Usually the graphics card is made in the form of a printed circuit board and inserted into an expansion slot, universal or specialized.

A printed circuit board mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate.

9

Some have been made using dedicated enclosures, which are connected to the computer via a docking station or a cable.

In computing a docking station or port replicator or dock provides a simplified way of "plugging-in" a laptop computer to common peripherals.

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