The full name is graphics processing unit, and Chinese is translated into graphics processor. NVIDIA first proposed the concept when it released GeForce 256 graphics processing chip. GPU reduces the dependence of graphics card on CPU and does some work of the original CPU, especially in 3D graphics processing. The core technology adopted by GPU is hardware T&; L (geometric transformation and illumination processing), material mapping and vertex blending in cubic environment, texture compression and T& mapping, dual texture four-pixel 256-bit rendering engine, etc. , and hardware T &；; L technology can be said to be the symbol of GPU. The production of GPU is mainly produced by NVIDIA and ATI.
2) video memory (similar to the memory of the motherboard)
Displays the abbreviation of memory. As the name implies, its main function is to temporarily store the data to be processed by the display chip and the processed data. The stronger the performance of the graphics core, the more video memory is needed. In the past, the main memory was SDR, and the capacity was not large. At present, DDR3 specifications are basically available on the market, and some high-end cards use DDR4 or DDR5 generation memory with better performance. Memory is mainly provided by traditional memory manufacturers, such as Samsung, Hyundai and Kingston.
3) Graphics bios (similar to motherboard bios)
The graphics card BIOS is mainly used to store the control program between the display chip and the driver, as well as the model, specification, manufacturer and delivery time of the graphics card. When the computer is turned on, this information is fed back to the screen by displaying the control program in the BIOS. The BIOS of early display cards was fixed in ROM and could not be modified, but now most display cards use large-capacity EPROM, the so-called Flash BIOS, which can be rewritten or upgraded through special programs.
4) PCB board of graphics card (similar to motherboard)
It is the circuit board of the graphics card and connects other components on the graphics card. Function similar to motherboard.
5) Others
Like GPU fans or something.
Question 2: What are the components of a video card? 1. display chip
Step 2 remember
3. Signal output interface: HDMI interface VGA interface.
And DVI interface 4. Include a driver.
Question 3: What are the four components of a graphics card? What are the functions? 1. display chip
Main manufacturers: NVIDIA and ATi.
Step 2 remember
Video memory (VRAM) is a memory chip for storing display data, and its size directly affects the number of colors that a graphics card can display and the highest resolution it can support.
VRAM is similar to DRAM, but the difference is that DRAM chip has only one data port, which is used to read and write, while VRAM chip has separate read and write ports, so it is faster. At present, some high-end graphics cards are equipped with S-gram memory, which is specially designed for graphics cards and is faster than SDRAM used as computer memory.
3.RAM DAC
RAM DAC is a digital-to-analog converter, which converts the data in the video memory into an analog signal that the display can display, expressed in MHz.
4.VGA BIOS
Including display chip, driver control program, product identification and other information.
5. Graphics card output interface
1)VGA interface
2)DVI interface
3) S-video (independent video, S terminal)
Question 4: What is the main structure of the graphics card?
Question 5: What are the components of the desktop graphics card? Computer graphics components:
(1) display chip. The display chip is mainly responsible for the processing of graphics data and completing specific drawing functions, and is the core component of the graphics card.
The 3D graphics card integrates 3D graphics and special effects processing functions into the display chip, which reduces the burden of CPU processing graphics and accelerates the processing speed of 3D graphics.
The display chip is the largest chip and the most important part of the graphics card. It is marked with trademark and manufacturer's name. Generally, high-end graphics cards are equipped with heat sinks or cooling fans.
(2) graphics BIOS. Graphics BIOS, also known as VGA BIOS, is mainly used to store the control program between the display chip and the driver, as well as the product identification such as the model and specification of the graphics card. The BIOS of early graphics cards used mask ROM, which users could not modify and upgrade. At present, the BIOS of graphics cards are all EEPROM chips. I think Guangzhou Wei Xiang Jia Dian Maintenance Training School can upgrade it through special projects.
(3) VGA socket of the graphics card. VGA socket is a "D" socket with 3 rows, 5 jacks in each row, *** 15 jacks.
It is the output interface of the graphics card, which is connected with the D plug of the display and used for the output of analog signals. Some graphics cards have two VGA sockets, which can connect two monitors at the same time.
(4) Digital-to-analog converter. For example, the function of an analog converter is to convert a digital signal into an analog signal and then display an image on a display.
(5) display memory. The display memory, also called video RAM, is used to temporarily store the graphic data processed by the display chip. The larger the display memory, the faster the graphics processing speed.
Video memory is an important part of graphics card, and its capacity unit is MB, such as 64 MB, 128 MB, etc. Display cache, also known as frame cache, determines the maximum resolution of the graphics card.
(6) The bus structure of the graphics card. Early graphics cards included ISA and PCI. 1997 AGP liberated the graphics card from the low-speed PCI and became the special bus for the graphics card. In just a few years, AGP has developed from AGP 1X to AGP 8X, which has reached the limit. PCI Express with higher bandwidth will become the standard interface of the next generation graphics card.
Question 6: What are the six components of a graphics card? Among them, what is the core component of the graphics card? 1. display chip 2. A video memory 3. Signal output interfaces: HDMI interface, VGA interface and DVI interface 4. Including the driver.
Question 7: What are the main components of a graphics card? Graphics chip (gpu)
Memory chip
Graphics card circuit board!
Capacitors and related electronic components!
Question 8: 6. What components does a graphics card consist of? The structure is very simple, mainly composed of GPU chip, power module, video memory chip, other control chips and BIOS chip.
The most critical one is GPU chip, which determines the performance, grade and price of the whole graphics card. Knowledgeable players watch this, novices only watch video memory and often buy junk.
Question 9: What are the main functions of the graphics card? The function of the graphics card is to convert the display information required by the computer system to drive the display, and provide the line scanning signal to the display to control the correct display of the display. It is an important part connecting the monitor and the motherboard of personal computer, and it is one of the important devices of "man-machine dialogue".
Working principle and mode of graphics card
The graphics card is inserted into the expansion slot on the motherboard (now it is usually PCI-E or AGP slot). It is mainly responsible for converting the display signal sent by the host computer to the general electric signal, so that the display can understand what the personal computer is asking it to do. The main chip of the graphics card is called "video chipset" (also called GPU or VPU, graphics processor or visual processor), which is the main processing unit of the graphics card. There is also a kind of memory similar to computer memory on the graphics card, which is called "video memory" or "video memory" for short.
Early graphics cards were just simple graphics cards, which only played the role of signal conversion; At present, the commonly used graphics cards have the functions of 3D picture operation and graphics acceleration, so they are also called "graphics acceleration cards" or "3D acceleration cards".
Graphics cards are usually composed of bus interface, PCB board, display chip, video memory, RAMDAC, VGA BIOS, VGA function pin, VGA socket and other peripheral components. Now most graphics cards also have DVI display interface or HDMI interface and S-video terminal interface.