What does the graphics card do?

The main function of the graphics card is to process the instructions and data provided by the CPU into text or images that can be accepted by the monitor and then display them, so as to provide a basis for the user to continue running or terminate the program, usually by the bus Interface, PCB board, display chip, video memory, RAMDAC, VGA BIOS, VGA function pin, D-sub socket and other components. Most graphics cards also have VGA, DVI display interface or HDMI interface, S-Video terminal and Display Port interface .

The operating environment of this article: RTX 3070 system, MSI graphics card.

The main function of the graphics card is to process the instructions and data provided by the CPU into text or images that the monitor can accept and then display them, so as to provide a basis for the user to continue running or terminate the program.

The graphics card is one of the basic components of a personal computer. It converts the display information required by the computer system to the monitor, and provides progressive or interlaced scanning signals to the monitor to control The correct display of the monitor is an important component that connects the monitor and the personal computer motherboard. It is one of the important devices of "human-computer". Its built-in parallel computing capability is currently also used for deep learning and other operations.

Graphics cards are also The video card, also known as the video card, is an important part of the computer and is responsible for outputting display graphics. For those who like to play games and engage in professional graphic design, the video card is very important. The display chips of mainstream graphics cards are mainly manufactured by two major manufacturers, NVIDIA (NVIDIA) and AMD (AMD). Graphics cards using NVIDIA display chips are usually called N cards, while graphics cards using AMD display chips are called A cards. Computers with higher configurations include graphics card computing cores. In scientific computing, graphics cards are called display accelerator cards.

The video chip (Video chipset) is the main processing unit of the graphics card, so it is also called the Graphic Processing Unit (GPU). GPU is the concept first proposed by NVIDIA when it released the GeForce 256 graphics processing chip. . Especially when processing 3D graphics, the GPU allows the graphics card to reduce its dependence on the CPU and complete some of the work that originally belonged to the CPU. The core technologies used by GPU include hardware T&L (geometric conversion and lighting processing), cubic environment material mapping and vertex mixing, texture compression and bump mapping, dual texture four-pixel 256-bit rendering engine, etc. Hardware T&L technology can be said to be the core of GPU symbols of. [1]

The various 3D special effects supported by the graphics card are determined by the performance of the display chip. What kind of display chip is used roughly determines the grade and basic performance of the graphics card, such as NVIDIA's GT series and AMD's HD series. [1]

There are many ways to measure the quality of a graphics card. In addition to using test software to test and compare, there are many indicators for users to compare the performance of graphics cards. The main factors that affect the performance of graphics cards are graphics card frequency, display Memory and other performance indicators

Graphics cards are usually composed of bus interface, PCB board, display chip, video memory, RAMDAC, VGABIOS, VGA function pin, D-sub socket and other components. Most graphics cards also have VGA, DVI displays interface or HDMI interface, S-Video terminal and DisplayPort interface.

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