When was the earliest video card to dig for bitcoin

1.

21.5 * 3600 seconds * 24 hours = 1857600 M / day
1857600 / 1024 / 1024 = 1.7715 T / day
a t of computing power / day can dig bitcoin worth 4.03 yuan
1.7715 * 4.03 = 7.14 yuan / day

since 2017, bitcoin has reached new heights. Yesterday (May 23), the value of bitcoin broke through the ￥ 16000 mark, hyping virtual currency, becoming a matter that the general public can participate in, And a little bit of technical level, both fried money, but also began to have the technical content of mining

as we all know, virtual currency has a numerical peak, the more difficult it is to dig. In fact, it's hard to judge whether to lose money or not if we continue to dig. Therefore, in the end how to dig, dig what can be the fastest back to this, this paper studies the above two core issues based on the current market situation

2.

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

3. There's a mistake upstairs. Bitcoin came out in 2009. How could bitcoin mining machine be 7 or 8 years old

now, of course, there are still people mining. There are about 21 million bitcoins in total. At present, there are about 13 million bitcoins in the world, and there are 8 million left. However, now mining is basically large-scale integrated mining machine, and the era of graphics card mining ended at the end of last year, because with more and more bitcoin being g out, the difficulty of mining is increasing automatically, and large-scale mining equipment is manufactured in batches, resulting in that the computing power of graphics card can no longer generate positive benefits
for example, the current mining difficulty is 16818461371, and the computing power of a better graphics card such as ati5970 is 800mhash / s. It takes 2863 years to dig out a bitcoin. The computing power of the large-scale integrated miner can reach 2tash / s, and it will take more than a year to dig out a bitcoin. There are many manufacturers procing this kind of large mining machine all over the world, and the computing power is still improving. Only this kind of equipment has been put into use for more than 100000.

4. This is legal in some countries, and the domestic attitude is not very clear. Anyway, it is not illegal

5. Last year, some people began to play bitcoin in China. In February and March, the price of bitcoin was about $130 a piece. That's the right time for some people to specialize in mining. However, the craziest thing was that the price of bitcoin began to soar in the second half of the year. The unit price of bitcoin exceeded RMB 10000 a piece. At that time, it was the golden age of mining machinery. After the government issued regulations, the price of bitcoin plummeted, More than n miners and ore sellers died

6. This question is too wonderful. I didn't want to answer it, but it's too wonderful. I'm cheap
1. Bitcoin is an open-source P2P e-money software developed by a pseudonym Satoshi Nakamoto. I think Satoshi has realized a great idea through software. Decentralize the issue of money. You go to Wiki to learn, Pro: bitcoin
2. There should be fewer and fewer people who are still using graphics cards to dig bitcoin, because graphics cards are in the process of elimination. Now mining is mainly ASIC miner, and the competition of ASIC is becoming increasingly fierce. The former leader asicminer is no longer popular. As for what mining is calculating, please see pan Zhibiao's article http://618.io/blog/2013/08/03/proof-of-work-and-mining/
3. Why is it worth 700 yuan. Because someone is willing to pay 700 yuan to buy him, why others will buy him? You have to ask the buyers. At present, it seems that more and more people buy him. Besides, bitcoin has no value. I don't know. What's your reason? I'd like to hear more about it
4. The accounts of the whole bitcoin are open to the whole network, and each bitcoin transaction is saved in the file of each bitcoin QT software client. It's public. You don't understand.

7. Mining, you need to use amd
graphics card. Use its
general computing
function to participate in high difficulty computing tasks
n card
has low mining efficiency, no one uses it.

8.

R9 370x 4G is actually the new vest of R9 270x, which is the high-frequency version of hd7870

now there is basically no new one, and the reference price for two hands is about 350 yuan

I suggest that 4G video memory is not very useful for this grade of video card, but 2G video memory is recommended.

because the picture quality of a game needs 4G video memory, Then the core speed of R9 370x can't keep up with that of

4G video memory. It is recommended to use at least R9 290 / 390

9. Basic settings - Finance - accounting account, open the interface, click Edit - specify account in the menu bar, and select the secondary account under other monetary funds, bank draft deposit, credit card deposit, etc. as cash flow account in cash flow account settings.