Force calculation board diagram
You can refer to the following, according to some commonly used graphics cards in the Internet bar market, sort out the price and calculation power of a related graphics card, as well as the expected return to the current period, It can be used as a reference:
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power consumption: 243w
computing power: 22.4m
price of graphics card: 1999 yuan
quantity of eth g every 24 hours: 0.015
revenue generated every 24 hours: 24.48 yuan
expected payback time: 81.66 days
power consumption: 159w
computing power: 24.3m
price of graphics card: 1599 yuan Yuan
number of eth g every 24 hours: 0.017
revenue generated every 24 hours: 27.9 yuan
estimated payback time: 57.31 days
total power consumption: 171w
computing power: 24.4m
price: 1999 yuan
number of eth g every 24 hours: 0.017
revenue generated every 24 hours: 27.87 yuan
estimated payback time: 71.73 days
Video card (graphics card) full name display interface card, also known as display adapter, is the most basic configuration of computer, one of the most important accessories. As an important part of the computer host, the graphics card is the equipment of digital to analog signal conversion, and it undertakes the task of output display graphics
the graphics card is connected to the main board of the computer, which converts the digital signal of the computer into an analog signal for the display. At the same time, the graphics card still has the ability of image processing, which can help the CPU work and improve the overall running speed. For those engaged in professional graphic design, graphics card is very important. Civil and military graphics chip suppliers mainly include amd (ultra micro semiconctor) and NVIDIA (NVIDIA). Today's TOP500 computer, including graphics card computing core. In scientific computing, graphics card is called display accelerator
The types of chips that provide computing power for AI include GPU, FPGA and ASIC
GPU is a kind of microprocessor specialized in image operation on personal computers, workstations, game machines and some mobile devices (such as tablet computers, smart phones, etc.). It is similar to Cu, except that GPU is designed to perform complex mathematical and geometric calculations, which are necessary for graphics rendering
FPGA can complete any digital device function chip, even high-performance CPU can be implemented with FPGA. In 2015, Intel acquired the FPGA long alter head with us $16.1 billion. One of its purposes is to focus on the development of FPGA's special computing power in the field of artificial intelligence in the future
ASIC refers to the integrated circuits designed and manufactured according to the requirements of specific users or the needs of specific electronic systems. Strictly speaking, ASIC is a special chip, which is different from the traditional general chip. It's a chip specially designed for a specific need. The TPU that Google recently exposed for AI deep learning computing is also an ASIC
extended data:
chips are also called integrated circuits. According to different functions, they can be divided into many kinds, including those responsible for power supply voltage output control, audio and video processing, and complex operation processing. The algorithm can only run with the help of chips, and because each chip has different computing power in different scenarios, the processing speed and energy consumption of the algorithm are also different. Today, with the rapid development of the artificial intelligence market, people are looking for chips that can make the deep learning algorithm perform faster and with lower energy consumption
1. It may be the problem of temperature. Low or high temperature will affect the calculation power of the miner
2. There are problems in the miner itself, which lead to abnormal calculation force
3. The aging of mining machine leads to the decrease of calculation power, and the calculation power of second-hand mining machine is relatively the first
bitcoin, Leyte coin, sand coin and all the mining machines that need mining are like this.
In addition to the fixed parking lot in the map, there are also temporary parking spots on both sides of the urban streets in the core business district of Nanning. The parking fee is 3 yuan / hour. There is a large flow of people near Heping shopping mall and trading ground, so it is suggested that people should not drive to Heping shopping mall; Before the festival, there are a lot of traffic and people, so please pay attention to safety
gold miner Chinese version www.smallgames.cn/flash/5164.htm
(the above games can be downloaded directly)
for relevant information: http://ke..com/view/1618007.htm
There is no such saying, only the saying of photocell
The principle of phototube is photoelectric effect. One is the semiconctor material type of phototube, its working principle is photodiode, also known as photodiode, is the vacuum phototube
when the pole is up, e to the external photoelectric effect (see photoelectric sensor), the photoelectron is emitted from the pole layer to the vacuum. Under the action of the electric field, the photoelectron accelerates between the electrodes and is finally received by the anode with high potential. The photocurrent can be measured in the anode circuit, and its magnitude depends on the light intensity and the sensitivity of the photocathode. According to the different shapes and settings of photocathode and anode, photocells can be generally divided into five types
(1) central cathode type: because the cathode area is very small and the luminous flux is not large, this type is only suitable for low illumination detection and measurement of photon initial velocity distribution (2) Central anode type: e to the large area of cathode, the size of incident focus spot is not limited; Because the distance from photocathode to anode is the same, the electron transit time is consistent; The disadvantage of this method is that it needs higher anode voltage because of its poor photoelectron receiving characteristics (3) semicircular cylindrical cathode: this structure is beneficial to increase the insulation performance between electrodes and rece the leakage current (4) parallel plate electrode type: this type is characterized by the fact that photoelectrons fly from the cathode to the anode in a parallel straight line, and the electrode has good consistency for light incidence. ⑤ Flat plate cathode with cylinder: it is characterized by compact structure, small volume and stable operation I hope I can help you solve your doubts