Graphics knowledge Literacy: teach you how to see the video card good or bad

When you buy a video card, in the graphics card parameters, basic can see the display chip, video memory capacity, graphics card bit width, core frequency, memory frequency and other important parameters, these parameters are the composition of the key to determine the performance of the core parameters, below, the triple small set to talk about graphics card parameters knowledge literacy, teach you how to pass the graphics parameters, To judge the video card is good or bad, refused profiteers.

　　1. Display chip

The display chip is the core chip of the graphics card, its performance directly determines the performance of the graphics card, at present, computer graphics card chip factory, only Nvidia and AMD two, other brand graphics cards are using the two card chip, its main task is to process the system input video information and its construction, rendering and so on. Display the main chip performance directly determines the performance of the display card high and low.

Different display chip, whether from the internal structure or its performance, there are differences, and the price difference is also very large.

Ps. The general graphics ladder diagram, are based on the graphics card display chip to rank performance, so look at the graphics card performance, memory chip is the most important.

Related reading: How to see the performance of Graphics card ladder Chart June 2016 latest edition

　　2. Memory capacity

Memory capacity is the number of local memory on the video card, which is one of the key parameters to select the video card. The size of the memory capacity determines the ability to temporarily store data memory, to some extent, will also affect the performance of the graphics card. Video memory capacity is increasing with the development of the graphics card, and there is an increasing trend. Memory capacity from the early 512KB, 1MB, 2MB and other minimum capacity, developed to the present 2GB, 3GB, 4GB.

It is worth noting that the larger memory capacity does not necessarily mean that the higher the performance of the graphics card, because the three elements to determine the performance of the graphics card is its use of the display chip, followed by the video memory bandwidth (this depends on the memory bit width and memory frequency), the last is the memory capacity.

A video card should be equipped with how much memory capacity is appropriate by its use of the display chip determined, that is to say, the video memory capacity should match the performance of the display core, which is reasonable, the higher the performance of the chip because of the higher processing capacity of the video memory capacity corresponding should also be larger, And the low performance of the display chip with a large capacity of video memory for its performance is not any help.

　　3. Core frequency

The core frequency of the video card is the operating frequency of the display core, its working frequency can reflect the performance of the display core to a certain extent, but the performance of the graphics card is decided by the core frequency, video memory, pixel pipeline, pixel filling rate and so on, so in the case of displaying the core different, A high core frequency does not represent a strong performance for this video card.

　　4. Video Memory Frequency

Memory frequency refers to the frequency, in MHz (megahertz), that the display is working on the video card by default. Video memory frequency to a certain extent reflects the speed of the video memory. Memory frequency and Memory clock cycle is related to the reciprocal relationship between the two, that is, video memory frequency =1/Memory clock cycle.

　　5. Memory Type

Memory type In fact, there is nothing to say now, the mainstream graphics card memory types are GDR5, some old graphics cards or entry-level junk video cards, may also be equipped with the oldest GDR3, for this kind of graphics can be ignored, the performance of the slag.

Ps. Some entry-level notebook video cards may still be GDR3, which is a little bit of a note. Anyway, desktop computer graphics card, GDR3 memory type is the slag performance.

　　6. Video Memory bit width

Video memory bit wide, generally the larger the better, like highways, the wider the road, can pass the vehicle and speed can be faster, so the memory bit width is also a key factor in determining the performance of graphics cards.

At present, desktop computer mainstream graphics card bit width generally reached 128bit, a good number of graphics cards, reached 256bit, or even 512bit. And some entry-level graphics card or entry-level notebook video card, the bit width may still be 64bit, so if you see the graphics card parameters in the memory bit width or 64bit, that basic also need not look, performance is not good where to go.

Figure is GTX960 mainstream graphics card parameters

In addition to see the graphics card, but also pay attention to the interface, General HDMI, DVI and other High-definition interface is now the mainstream of the standard graphics, in addition to some older VGA, DP, dvi-i interface, etc., general interface rich some better, especially not less than HDMI or DVI, such as the current mainstream high-definition interface.

Graphics card Parameters Knowledge literacy, I believe you read this article, the graphics card parameters of the understanding will have a further understanding, especially for computer enthusiasts novice friends, this article can play a good role in literacy. At the end of the article, attach the public version of the graphics card and non-public version of the graphics card contrast.