Why mining graphics card is cheap

1.

Why use graphics card to mine

compared with CPU, GPU is used for general purpose calculation. So it can stack hundreds of stream processors awesome. Each stream processor is like a small CPU. Although its ability to run complex programs is far from the power of CPU, it can not support many processors, so the actual performance, especially the single precision floating point performance is much stronger than that of CPU. p> However, as we have mentioned before, a card is very suitable for general computing such as virtual currency because it has many stream processors, and the speed of obtaining specific solutions is much higher than that of N card. Therefore, many miners rush to buy a card to calculate virtual currency for profit

of course, with NVIDIA's Pascal graphics card, n card's ability in mining virtual currency is not as different as a card before. So in the current situation that a card is generally out of stock, those mid-range N cards have become the second choice for miners

What are the disadvantages of mine card

finally, I want to talk about why we can't choose mine card when we are shopping for second-hand cards. Because the miners are mining bitcoin, the most important thing is to seek profits. Therefore, the graphics card they use is running and calculating all the time, and its strength is far greater than that of daily game applications. In other words, running such a calculation for one day is equivalent to running a graphics card for one month

in addition, the places where virtual currency is mined are mostly the places where multiple graphics cards gather. Thousands of graphics cards are constantly calculating in a room, and their heat is also quite huge. Miners can not choose the chassis with good heat dissipation conditions like ordinary consumers, so that the heat can be released smoothly. In this way, the graphics cards can still operate for 7 * 24 hours under high temperature conditions, It also deepens its aging degree

the result of doing so is that the graphics cards used for mining are lost prematurely. If you buy these graphics cards, the result will be unstable operation, restart and other things will continue to happen

moreover, at present, manufacturers also have strict requirements on mine cards, such as banning second-hand sales and shortening the shelf life. If users buy these mine card graphics cards, future maintenance will also be a big challenge

2. Graphics card uses GPU for general purpose calculation. So it can stack hundreds of stream processors awesome. Each stream processor is like a small CPU. Although its ability to run complex programs is far from the power of CPU, it can not support many processors, so the actual performance, especially the single precision floating point performance, is much stronger than that of CPU. The actions in bitcoin can be regarded as the use of graphics card to do continuous general computing, and the computational complexity is relatively low and quite repetitive. The stream processor used by graphics card is just suitable for such an algorithm.

3. Mining is at the cost of long-term overload operation of the graphics card. Although the use time is very short, there may be many dark problems, so it is not recommended to buy it.

4. Mining is equal to long-time high load work, which has an impact on the life of the graphics card. But if the price is right, you can buy it.

5. The mine card is working with overclocking and full load, and continues to work for a long time, so the failure rate is very high, the service life is also very low, and the general mine card does not guarantee. One month of video card mining is equivalent to one year of normal use

6. Maybe your mining needs a strong computer system, so mining needs a graphics card. The following is about the graphics card extension information<

overview
graphics card, also known as video card, is an important part of the computer. It undertakes the task of outputting display graphics. For people who like to play games and engage in professional graphic design, graphics card is very important. The display chips of mainstream graphics cards are mainly made by NVIDIA (NVIDIA) and AMD (ultra micro semiconctor). Generally, the graphics cards with NVIDIA display chips are called N cards, while the graphics cards with AMD display chips are called a cards[ 1]
computers with high configuration all contain graphics card computing core. In scientific computing, graphics card is called display accelerator[ 1]
Video chipset is the main processing unit of graphics card, so it is also called graphic processing unit (GPU). GPU is the first concept put forward by NVIDIA company when it released geforce 256 graphics processing chip. Especially when dealing with 3D graphics, GPU makes the graphics card less dependent on CPU, and completes part of the work originally belonging to CPU. The core technologies of GPU include hardware T & L (geometry conversion and illumination processing), cubic environment material mapping and vertex blending, texture compression and bump mapping, al texture four pixel 256 bit rendering engine, etc[ 1]
all kinds of 3D special effects supported by the graphics card are determined by the performance of the display chip, and what kind of display chip is used roughly determines the grade and basic performance of the graphics card, such as NVIDIA GT series and AMD HD series[ 1]
there are many ways to measure the quality of a graphics card. In addition to using test software to test and compare, there are many indicators for users to compare the performance of a graphics card. The main factors that affect the performance of a graphics card are the frequency of the graphics card, display memory and other performance indicators [1].

7. Bitcoin mining machine is specially used to earn bitcoin computer-like professional mining chip. It uses burn-in card type working power consumption. Compared with users using computer software to run specific calculation and communicate with remote server, the corresponding bitcoin can obtain bitcoin. The price of bitcoin mining machine is two or three thousand yuan and 200000 yuan. 20112013 high configuration bitcoin mining machine is 10000 yuan, up 300000 yuan Dig 1 bitcoin today (2013) machine 100 can dig 3.5

8. There is no need to set it manually, let the computer manage it automatically. 1. The recommended value of Microsoft's virtual memory setting is 1.5-3 times that of physical memory. Then, 16g memory needs to be set very large and takes up a lot of disk space. But it didn't work. 2. Because 16g memory is enough for most ordinary users, there is no need for virtual memory at all. It's only a waste if it's so big. 3. But it can't be shut down either. Because someone has tested, 32g computer, after turning off the virtual memory, will also be out of memory prompt. Because some programs need virtual memory. Therefore, for the sake of compatibility, it is best not to turn off the virtual memory and let the system manage automatically.

9. Jiulongbi jade, also known as chalaoshi, meihuashi and Hua'an jade in ancient times, is distributed in the Jiulong River Valley of Zhangzhou City, Fujian Province
Jiulong jade has four unique characteristics:
first, it has unique connotation of dragon jade. Jiulong, dinosaur, Jasper, jade, nephrite, jadeite in one. Hence the name "Jiulong Jasper" is worthy of the name, loud and beautiful. It is the best national stone suitable for the belief of dragon jade culture in China
Second, it has huge, extra large, super large jade, rare stone resources, and its great advantage in block size. It is suitable for the huge demand of China's long-term development
thirdly, there are four types of jade of the existing dragon; There are also five types of jade. It covers many types of famous jade and stone in Chinese history. The existing original jade and its marble landscape painting; Pu jade and its hermit type; Ziyu and its shape stone and Longwen stone type; There are also Ziyu and Yuhua stone types, and Qinse jade and its strange stone types. Therefore, there are many types of dragon jade culture. The world is unique, very rare< 4. There are four types of natural jades of the same kind and heterogeneity in the history. There are also four famous jade in the history of the five elements in China. Therefore, the jade of Jiulong in Southeast China contains the later enlightenment of Chinese five element jade.

10. Compared with the complex calculation of CPU, GPU used in graphics card is general calculation. So it can stack hundreds of stream processors awesome. Each stream processor is like a small CPU. Although its ability to run complex programs is far from the power of CPU, it can not support many processors, so the actual performance, especially the single precision floating point performance, is much stronger than that of CPU. The actions in bitcoin can be regarded as the use of graphics card to do continuous general computing, and the computational complexity is relatively low and quite repetitive. The stream processor used by graphics card is just suitable for such an algorithm. It's like constantly solving equations. The graphics card is 2000 middle school students, while the CPU is 8 math doctors. Although the mathematical knowledge of the doctor of mathematics is far more than that of the middle school students, the speed of solving medium-sized equations such as virtual currency is certainly not as fast as that of 2000 middle school students. Therefore, the more graphics cards, the more operations