Power consumption of Ethereum graphics card machine
For example
a 4-sheet R9 280x graphics card miner. About 2.9m
power consumption:
the rated power of each graphics card is about 250W, and slightly overclocking is about 300W. Four graphics cards, 1200W
platform: motherboard, CPU, hard disk, etc., which add up to no more than 200W
display, mining machine is basically no display
the total power is about 1400W. 33.6 degrees a day
if the caption is only for ordinary household desktop computers, it is not easy to calculate, because the key is the power consumption of the graphics card. The power consumption of ordinary graphics card is about 150W. And then add the others according to 200W, a total of 350W. 4.2 degrees a day
1. Power consumption: 243w; Calculation force: 22.4m; Price: 1999 yuan; The number of eth g every 24 hours: 0.015; Revenue generated every 24 hours: 24.8 yuan; Expected payback time: 81.66 days
2. Power consumption of the whole machine: 159w; Calculation force: 24.3m; Price: 1599 yuan; Number of eth g every 24 hours: 0.017; Revenue generated every 24 hours: 27.9 yuan; Expected payback time: 57.31 days
3. Power consumption: 171w; Calculation force: 24.4m; Revenue generated every 24 hours: 27.87 yuan; Expected payback time: 71.73 days
4. Power consumption: 97W; Calculation force: 9.2; Price: 999 yuan; Number of eth g every 24 hours: 0.006; Revenue generated every 24 hours: 10.09 yuan; Expected payback time: 99.1 days
extended data
mining machine risk
1. The problem of electricity charge
in order to make the graphics card full load for a long time, the power consumption will be quite high, and the electricity charge will be higher and higher. Many professional mines at home and abroad are operated in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even in a certain residential area in Yunnan, there was a case of crazy mining, which led to a large area trip of the residential area, and the transformer was burned
2. Hardware expenditure
mining is actually a competition of performance and equipment. Some mining machines are composed of more such graphics card arrays. With dozens or even hundreds of graphics cards, the cost of hardware and other costs is very high, and there is a considerable expenditure in mining
3, currency security
the withdrawal of bitcoin requires hundreds of keys, and most people will record this long string of numbers on the computer, but the frequent problems such as hard disk damage will make the key permanently lost, which also leads to the loss of bitcoin
4870 70
180w
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4850
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125w
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the independent graphics card consumes a lot of power
now many high-end graphics cards need independent power supply
I hope it can help the landlord
that is, display power + host power
the power indicated on the display can be calculated as a reference. Generally, the power of CRT is between 60 and 80W. The temperature of liquid crystal is between 30 and 40 W
the host is hard to say, depending on the configuration and usage. It does not correspond to the power of the host. Now the general power supply is 350W to 450W
under normal circumstances, the normal use of the host is about 200 W, and those who play some games are between 200 and 250 W. If you play big games or do media processing, it will be dozens of W more
one degree power = 1kW * 1 hour. If your computer generally doesn't play big games, that is, it consumes about 200W of power, then it consumes one kilowatt hour
W = Pt (W is total work, that is power consumption, P is power, t is time) the unit of P is J (joule), the unit of T is s (second)
Whether there is an external power supply interface on the PCB of the graphics card can reflect the power consumption of the card. But we can't judge its performance simply by whether it has external power supply interface
The power consumption of the graphics card is more than 75W. Due to the PCI x16 slot on the motherboard, it can only provide the maximum power of 75W, that is, the graphics card with power consumption below 75W has no external power supply interface2. For example, the gtx750 graphics card in the right figure has no external power supply interface, and the gtx1060 board in the left figure has 6 + 6pin power supply interface
It shows that the performance / power ratio of the graphics card with high power consumption is also different, so we can not simply judge the quality of the graphics card from the power consumption. As the graphics card architecture design is optimized generation by generation, advanced energy-saving technology is added to rece power consumption and improve performance, which is the development direction of graphics card technology Video card (graphics card), also known as display adapter, is one of the most basic configuration and important accessories of computer. 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 graphicsthe 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
