1, working principle: the video card is inserted in the expansion slot on the motherboard (now generally PCI-E slot, before AGP, PCI, ISA and other slots). It is mainly responsible for converting the display signal sent by the host to the display into a general electrical signal, so that the display can understand what the PC is asking it to do.
2, they are responsible for processing the video information input by the system, construction, rendering and other work. Video memory The size and quality of video memory are directly related to the displayThe performance of the card. At present, the common types of video memory are SGRAM, SDRAM, DDR and so on. When choosing a video card, video memory is an important reference indicator. The main task of the graphics card necessary to play 3D games is to process the instructions and data provided by the CPU into words or images that the display can accept.
3, the graphics card is usually composed of bus interface, PCB board, display chip, video memory, RAMDAC, VGA BIOS, D-sub socket and other peripheral components. The bus interface is the interface between the imaging board and the computer, and the bus interface includes: ISARate and memory frequency, as well as the difference and connection of bit width. The master...
1, the specific parameters of the graphics card are generally display chip (chip code), video memory capacity, video memory type, video memory bit width, video memory package, core frequency (boost frequency), video memory frequency, stream processing unit (stream processor). Display chip: Display chip is the core chip of the graphics card, its performance directly determines the performance of the graphics card, its main task is to process the video information input by the system and build it, rendering and other work.
2, because the higher the core frequency, the faster the speed,The larger the bit width, the faster the running speed, followed by the video memory, because 2G video memory, the width is only 128, the core frequency is about the same, there is no 1G video memory width 256 running speed.
3, the video memory of the video card is composed of a block of video memory chips, and the total bit width of the video memory is also composed of the bit width of the video memory particles. Video memory bit width = video memory bit width x number of video memory particles. The memory particles have the memory number of the relevant manufacturer, you can go to the Internet to find its number, you can understand its bit width, and then multiplied by the number of video memory particles, you can get the bit width of the video card.
4,Its bandwidth =4000MHz x 128bit /8, while the GDDR3 version of the GT240 with a memory frequency of 1800MHz has a bandwidth =1800MHz x 128bit /8. The former relies on 22 times the memory frequency of the latter, and obtains a great bandwidth advantage. Even in the face of 256bit graphics cards, you can get the lead in performance with the advantage of high frequency.
5, but the speed and time are proportional, so by giving the ns value, we can easily know the operating frequency of the video memory. To put it simply, the shorter the timeThe faster you work. Finally is the bit width, that is, we often talk about 128 bits or 64 bits, this indicator indicates the width of the data flow when the memory and the chip exchange data, if the data is used as a car, the width refers to the width of the road. Therefore, the wider the better.
6, in the same level of the chip, the core frequency of high performance is stronger, improve the core frequency is one of the methods of graphics card overclocking. B Video memory frequency refers to the frequency of the video memory when it is operating on the video card by default, in MHz (megahertz). Memory frequency reflects the speed of the memory to some extentDegree.
1, the disadvantages of integrated graphics card: can not be changed to a new graphics card, to say that it must be changed, it can only be changed with the motherboard and CPU at one time. Independent graphics card refers to the display chip, video memory and its related circuits are independently done on a circuit board, and exist as an independent board, which needs to occupy the expansion slot of the motherboard (ISA, PCI, AGP or PCI-E).
2, according to the chip model, can be dividedIs N types. Integrated graphics cards are completely free (free when you buy a motherboard or CPU, integrated in the motherboard or CPU), low power consumption, poor performance. Independent graphics cards are more expensive, power consumption is higher (generally proportional to performance), and performance is more powerful (depending on the grade of the graphics card, of course, if you buy a pure impotent independent graphics card, of course, performance is not likely to be strong).
3, first of all, the independent graphics card is a separate accessory, with independent video memory, performance is generally much higher than the integrated graphics card and core graphics card. But you need to pay for it separately. Integrated graphics cards and core graphics cards are additional things, integrationThe graphics card is directly integrated in the motherboard north bridge, some motherboards will give the integrated graphics card integrated a small amount of video memory, but limited to the size and cost, the performance and independent graphics card is not comparable, but also the worst performance of the three graphics cards.
The display chips of mainstream graphics cards are mainly made by NVIDIA (NVIDIA) and AMD (Supermicro Semiconductor) two major manufacturers, usually the graphics card using NVIDIA display chips is called N card, and will use AMD display chipsThe video card is called A card. The more developed computers all contain a graphics card computing core. In scientific computing, a graphics card is called a display accelerator card.
Video card, also known as video card, is an important part of the computer, undertake the task of output display graphics, for people who like to play games and engage in professional graphic design, video card is very important. The display chips of mainstream graphics cards are mainly manufactured by NVIDIA (NVIDIA) and AMD, and the graphics cards using NVIDIA display chips are usually called N cards, and the graphics cards using AMD display chips are calledIt's A card.
Intel, VIA (S3), SIS mainly produce integrated chips; ATI and nVidia are mainly independent chips, which is the mainstream in the market at present, but because ATi has now been acquired by AMD, it is difficult to say whether it will continue to show independent display chips in the future; Matrox and 3D Labs are focused on the professional graphics market. Since ATI and nVidia basically occupy the mainstream graphics card market, the following will mainly focus on the products of these two companies.
The main manufacturers of graphics chips are Nvidia and AMD. Description of the chip model of the N card Description of the chip model of the N card: The model of the N card consists of a prefix number. The prefix starts with GTX, GTS, GT, and GS. The digital model behind it is the more high-performance the stronger! At present, the most common N cards are GT and GTX. GT targets entry-level, GTX targets mid-range or higher.
Video card, also known as the display card, is an important part of the computer, undertake the task of output display graphics, for people who like to play games and engage in professional graphic design, video card is very important. The display chips of mainstream graphics cards are mainly NVIDIAThe graphics card using NVIDIA display chip is usually called N card, and the graphics card using AMD display chip is called A card. The graphics card is plugged into an expansion slot on the motherboard.
NVIDIA (NVIDIA) : GTX, 80, Ti GTX: indicates a series name of Nvidia, the full name is GeForce GTX, GTX positioning high-end graphics card series, ranking from low to high is GS/GT/GTX/RTX. 10: TableThis is a 10th-generation graphics card, and the larger the number the better, similar to the CPU. 80: Indicates the level of performance, this number is very important! Usually 1-4 is positioned as the low end of the same department, 5-6 as the middle end, 789 as the high end.
CUDA core number: The Compute Unified Device Architecture (CUDA) is a general-purpose parallel computing framework developed by Nvidia that utilizes the parallel computing power of Gpus to accelerate computing in areas such as scientific computing and deep learning. The more CUDA cores, the more graphics cardsThe more parallel computing power. Graphics card frequency: Graphics card frequency refers to the clock frequency of the GPU, usually in MHz.
The graphics card is one of the most basic components of a personal computer. The purpose of the graphics card is to convert the display information required by the computer system to drive, and provide line scanning signals to the display, control the correct display of the display, is an important component connecting the display and the PC motherboard, is one of the important equipment for human-computer dialogue.
Computer graphics cards are divided into two categories according to the location of integrated graphics cards and independent graphics cards. Integrated graphics card: One refers to the motherboard chipset with integrated displayThe motherboard using this chipset can realize the display function without the need for a single display, meet the general home video entertainment and office use, and save the cost of purchasing a single display. The motherboard of the integrated graphics card generally does not have video memory, and uses part of the memory of the system as video memory.
1, set display (integrated graphics card) : low power consumption, low price, but general performance, suitable for office, light entertainment, will soon be eliminated; Core display (core graphics card) : good performance, low power consumption, generally used for thin notebook; Independent (independentVideo card) : high performance, high price, high power consumption, easy to upgrade and replace, suitable for large games, professional editing, modeling and so on.
2, You know what? The Intel HD Graphics 4000 is the core graphics card, while the NVIDIA GT 630M is the standalone graphics card. Independent graphics card is like an independent soldier, need to fight alongside the motherboard; The core graphics card is closely linked to the CPU. If your computer doesn't run smoothly, don't blame the graphics card! It could be the hard drive! The core graphics card is closely connected to the CPU Intel HD GrapThe hics 4000 is a core graphics card that is closely connected to the CPU.
3, the graphics card usually has a small memory chip to store the control program between the display chip and the driver, and also stores the model, specifications, manufacturer, factory and other information of the graphics card. The BIOS of the graphics card is directly related to the overclocking of the graphics card. Bus interface The graphics card must be plugged into the motherboard in order to exchange data with the motherboard, so there must be a corresponding bus interface. Now the most mainstream bus interface is the AGP interface.
4, video card knowledge literacy you do not know the video memoryParticle knowledge Video memory A particle is a physical storage unit of video memory. The type of memory particle (GDDR5), single chip capacity (MB), single bit width (bit), and theoretical memory frequency (MHz) directly affect the performance of the graphics card.