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For gamers and designers, choosing a PC graphics card is undoubtedly a top priority. The editor also wrote a lot about knowing graphics cards, but many newbies said they were too professional to understand anything at all, so below is an easy-to-learn and understandable way to popularize basics of main parameters. video cards and we hope that users will be able to study them.

Basic knowledge about important parameters of video cards in an easy-to-learn and understand form

What does a computer graphics card do?

The CPU is equivalent to brain. We can compare a graphics card to an artist. The CPU (equivalent to concept of brain) first needs to tell graphics card what to draw, and then graphics card will draw one by one according to requirements of processor. Pictures, one by one, we can call it number of frames, and then monitor will play these pictures smoothly and at high speed, and we can see a coherent picture on monitor. A graphics card with good performance (a good draftsman) can draw more and better, making images we see on monitor smoother and clearer.

Scientific popularization of main parameters of video cards:

Video card architecture: newer better

The so-called architecture is technology used by graphics card. The newer graphics card architecture of each generation, more mature technology and more powerful processing power. New improvements have appeared on basis of automobile engines, which makes it more productive and more economical.

GPU stream processors: more is better

Whenever we see CUDA core in graphics card options, it is so-called graphics card stream processor, referred to as SP, which can also be called render tube, which is also one of important main graphics card options. The greater number of stream processors, more powerful and faster graphics card's ability to draw, which can be understood as drawing pictures by an old artist. (When comparing number of stream processors between graphics cards, it only makes sense to compare graphics cards of same generation.)

Core frequency: higher better

If core frequency is higher, performance of graphics card will undoubtedly be higher. If performance is high, power consumption will be higher. Conversely, if core frequency is low, performance will be lower. , and the heat will naturally be less.

Discrete Graphics

Memory bandwidth: memory bandwidth × memory frequency = memory bandwidth

The video memory bandwidth of a video card can be compared to road. The wider road, more cars can pass. The frequency of video memory can be compared to speed of a car. The higher video memory frequency, higher data transfer rate. Therefore, bit depth and frequency of video card have a greater impact on performance.

Video memory capacity:

Video memory is a temporary storage function for graphics card. The importance of video memory is not as important as architecture, stream processor, core clock, and video memory bandwidth. speculators to use point of sale of video memory to defraud Xiaobai. For example, a graphics card with GTX1060 3G video memory has only 3 GB of video memory, but its performance is undoubtedly higher than that of a graphics card with GTX1050Ti 4G video memory. More VRAM is certainly useful too, but it's not very important. Some large-scale games consume more VRAM. If there isn't enough VRAM, no matter how strong performance is, VRAM will explode.

The video memory of a video card can be compared to a parking lot: if road in parking lot is not wide enough (bit depth), speed of car is not fast enough (memory frequency), and parking bandwidth will be very small. A large parking lot (large video memory) is a waste of resources.

Scientific popularizing article about video cards N and A:

I believe that many users have heard of N card and A card. The so-called N card is a graphics card equipped with NVIDIA (NVIDIA) chips, and A card is a graphics card equipped with AMD chips. Currently N cards start with GT or GTX and A cards usually start with HD or R. HD are previous generation graphics cards and all new generation graphics cards start with R.

The market share of N-card is relatively high. The vast majority of established users choose N-card, there is also a market for A-card. Video cards of same level and price as N-card have higher specifications than N card. Thus, A card is more cost-effective.

Map N and card A

How to evaluate quality of a video card?

The positioning of each graphics card model can be viewed on ladder diagram of graphics card. In addition, we can also judge quality of video card by model of video card, as shown in figure below.

N map naming rules:

Map Name Value N

Map naming conventions:

Map Name Meaning

From a graphics card chip model, first number usually represents generation, and second number represents graphics card class. The higher number, better and higher performance. You can't compare. between N cards and A cards.

Whether ASUS, Gigabyte, MSI, GALAX or Sapphire, Dylan brand graphics cards are graphics chips provided by NVIDIA or AMD. This is due to differences in third-party brands, heat dissipation design and manufacturing materials, so price will vary, some versions may increase core frequency, and performance of video card with same chip will be better, but gap will not be very large.

Video card

About video card brand:

Recommended N card: Asus, Gigabyte, MSI, Zotac, Yingzhong, Colorful, GALAX, etc.;

Card hint: Sapphire, Dylan, etc.;

Professional graphics card offer: Leadtek;

The above is an easy-to-learn and understandable way to share basic knowledge about core parameters of a popular science video card. The article contains many metaphors. To understand method, beginners can better understand basic knowledge of graphics cards. I hope this article can help you.