Graphics performance which indicator is the most important? How do I choose a video card?

For other hardware, the CPU to see the number of cores, the frequency of the memory of the capacity, frequency, hard disk look at the size and transmission rate. Like non-professionals can also buy. But the graphics card model, many parameters, non-professionals how to identify the purchase it?

The problem is complicated because now the N-card and a-card have that irresponsible Intel graphics card, which makes it difficult for users to judge.

How does Intel graphics compare to other graphics cards?

For non-professional users as well as those who do not know, do not want to know, more lazy to understand the computer buyers, he only need to understand the following three points:

1. Whether to buy a laptop or a desktop (this determines the existence of 3rd and 4th)

2. How many budgets are available (plus how much of the video card's budget is on the entire machine)

3. What to do (don't expect machines that are used primarily for learning to run up-to-date games, but machines for the latest games will certainly be used for everyday learning)

4. Do I need to upgrade

Figure out the above 4 points, and then the second time you need to understand is:

1.400 yuan, 600 yuan, 800 yuan and 1000 yuan graphics card, although you do not understand between them in the flow processing unit, bit width, the voltage difference, but the price determines the performance, this is the most real. Buy 400 yuan graphics card also requires Crysis 3 to be able to effect full open no "slide", this and to buy a permanent bike God is four rings as impractical.

2.A card and n card between the so-called special effects and physical engine difference, this in a non-professional user's eyes is not visible signs, the only difference is that the current N card driver still do better than a card, but how much, only the running data can prove, and not professional users to buy a computer is not to run the data. So the so-called a card and N card difference, the implementation effect, like you see action film, in addition to DVD and VCD in the price there is a significant gap, you really can not ceremony and Japan's shy to x contrast out a good or bad. and a variety of vertical site editing with the evaluation of the number of the gap, mainly not to the user to see, they please the object is really a manufacturer (audience A, you can throw rotten eggs to me, but can not drive me out, thank you).

3. Desktop and notebook cards are not the same, and all-in-one graphics card and notebook video card is almost the same, so the desktop is really used to play games, and notebooks are really used to work. Non-professional users do not want to "10000 yuan notebook, its graphics card" will be better than "500 yuan desktop Graphics" How much (here is the reading ability to see clearly where the segmentation, then do not vomit; people who spit can only be poor reading ability, I think this does not include you), in fact, because to consider the heat dissipation , installation rationality, and execution efficiency, the notebook graphics card in the relative volume will never be able to achieve the performance of desktop graphics.

Well, now the non-professional user is rational, even if you are not rational, I also assume that you have been rational. Let's see what non-professional users have to understand.

1. Price. The more expensive the better performance, in addition to some of the pit Dad's professional card-rice users please self-esteem, do not mouth road smile. Generally in the low-priced low-end graphics card, the first thing to see is the memory bit width, 64Bit basic can be considered only for learning or watching movies, 5 years ago the mainstream of the bit width has been in 128Bit, it should be 192Bit, this multiple upgrade should not exist, is to take care of less money and heart sky high users, really meet the characteristics of Gao is 256Bit, but the price will not be less than 1000 yuan.

2.Shader processors. The more performance the better-this is the stream processor, in a way, the latest generation of mid-high-end graphics, this thing is the more the better. Identify the vertex processor is not the most, mainly look at the chip code card. For example, Nvidia GTX580, the chip code is GF110, stream processor is 512. and gtx660ti, Chip code is GK104, stream processor is 1344. These things, the graphics card box will generally have written, do not write or unscrupulous businessmen refused to say, do not buy.

Digression: Knowing this data can only make you understand that you spend 2500 yuan to buy the latest graphics card, instead of being used by unscrupulous traders to replace the products. In fact, when the game is executed, if the GTX580 stable frame number has a stable frame number of 29FPS,GTX 30fps, you can not see where the difference between the 1fps.

3. Frequency. The higher the performance the better-the latest graphics card, the frequency is definitely getting higher this is not wrong, but it also brings the increase in power consumption. So a better power supply is needed.

4. Video memory. The greater the memory in high resolution or anti-aliasing after the better performance, but for the low-end video card too large memory is very chicken-this is not entirely true. Large memory to match the high speed, so look at the video memory type. Now in the high-end graphics, generally use GDDR5 memory, but even so, there are differences in transmission speed. In the case of not memorizing these parameters, only need to look at the price, high price, video memory is basically better. In addition, in the video card box or on each IT professional website, will also be marked.

As for memory capacity, the default medium-high-end graphics card is now 1GB to 2GB. 512MB of memory capacity, or to learn it.

5. Memory bandwidth. (Frequency & bit width) The greater the performance, the greater the bandwidth, the greater the throughput-this has been said in the 1th.

6.TDP. The larger the cost of electricity, but the high-end graphics are generally not fuel-saving lights-This should be the 6th, the user can understand, but do not go into the drill. The easiest thing to understand about power consumption is brand trust. The chestnut description is: A Shuo, a star, a good product in the power consumption portion of the material will certainly be better than a rainbow, even if the material is equivalent to the case, the above three a card quality control is also better than a rainbow.

7. Noise. The bigger the more noisy, but the high-end graphics are generally not quiet. Noise is trivia. Video card fan noise is larger, it can not be larger than the power supply fan and CPU fan, here is to look at the brand before going to the video card fan is not good.

8. Software support. DX OpenGL OpenCL PhySX Cuda and other software support-this non-professional users do not have to figure out, DX and OpenGL What, in the civil domain, which graphics card manufacturers do not support it is the big sb. Only users who need to use 3D display effects, need to pay special attention to whether the video card support PhysX, and engineering drawings and other users will care whether support Cuda, this is not a non-professional users should go to scrutiny.

9.CF and SLI efficiency and compatibility. This will be used when building a multi-card-so-called Crossfire (DF) and SLI are both dual cards to achieve better processing performance. can use these functions and buy dual-SIM, basically not belong to non-professional users, either professional users, or "enthusiasts", they do not understand this thing is impossible, so ignored.

Great length answer to the present, it is estimated that non-professional users are almost up to the bar? The last thing to say is:

HD Hard decode Ability: This is now even Intel graphics are very Yingqi support, so do not worry about n card and a card is not supported.

In addition, if you think the color and picture have such a problem, it is often better to tune your monitor, rather than complaining about the wrong card.

200 Yuan of the card if the unscrupulous businessman claims to use 2GB of memory, seconds to kill what what card, then this card can be the basic cards of other seconds to kill. The reasons above have been clearly stated. Or that sentence, how much money, how many things.