Mining parameters

bitcoin was obtained by CPU in the early days. With the continuous development of GPU speed and the emerging advantages of GPU general computing, miners graally began to use GPU instead of CPU for mining. Bitcoin mining uses SHA-256 hash operation, which will carry out a large number of 32-bit integer cyclic right shift operation. Interestingly, this algorithm operation can be implemented by a single hardware instruction in AMD GPU, while it needs three hardware instructions to simulate in NVIDIA GPU. This one alone brings an additional 1.7 times of computing efficiency advantage for AMD GPU. With this advantage, amd GPU is favored by the majority of miners

advise the landlord not to dig up if the budget is not too much!!! This money is not earned if you want to

the difficulty of bitcoin is increasing. Mining with graphics card is a race against time. The main reason is that the difficulty of mining bitcoin is graally increasing (the reason of bitcoin algorithm design). If a set of platforms can get 1 bitcoin per day according to the current difficulty, then in one month, the platforms with the same computing power will only get 0.8 bitcoins, even the top graphics cards will get 18.2 days (which can't be shut down), and the lowest second-hand hd7750 will need more than 400 (it will take 214 days to get one). Just look at this figure (this is the data in May this year, Now it's more than 18 days)

people can earn money by buying several mining machines (mining machines with dozens of top graphics cards piled together)

I hope I can help you

Mine name mining method scheme structural parameters remarks stage height (m) block length (m) block oblique length (m) supporting height (m) bottom pillar height (m) inter pillar width (m) Qiliang iron mine DALUOBA mining area along the strike advance comprehensive method (pillar, artificial rock pillar) 80 ~ 100 40 ~ 60 no top pillar no bottom pillar 1.5 ~ 2 buttress 4 × 4 m, the distance between ore drawing passes is 12 ~ 16 m, Bari tin mine advances along the strike, the total method (artificial bottom pillar) is 20 50 ~ 60 40 ~ 50 2 ~ 3, the distance between ore drawing passes is 5 ~ 7 m, Chejiang copper mine advances along the dip, the total method (artificial stone buttress, metal anchor) is 20 ~ 30 40 ~ 50, without top pillar and bottom pillar, the bearing area of each cubic meter of stone buttress is 10 ~ 13 M, The distance between ore drawing passes is 20 ~ 30m in Xiangxi Gold Mine
the comprehensive method of advancing inversely inclined ore in Xi'an mining area along strike is 30 50 60 05 ~ 70 Tonghua copper mine, and the comprehensive method is 30 50 30 ~ 80 23 2 pillar 3 × The distance of ore pass is 3M, the distance of ore pass is 7m, the distance of ore pass is 12M, the distance of ore pass is 12M, the distance of ore pass is 25m, the distance of ore pass is 25m, the distance of ore pass is 12M, the distance of ore pass is 12M, the distance of ore pass is 25m, the distance of ore pass is 7m, the distance of ore pass is 7m, the distance of ore pass is 12M, the distance of ore pass is 25m, the distance of ore pass is 25m, the distance of ore pass is 60m, the distance of ore pass is 25m, the distance of ore