Mining machinery budget
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
of course, the faster the miner, the better, but it also depends on your budget
for high-end, you can choose several Intel Xeon E5 series processors with multiple motherboards
Intel Xeon 5600 series or E3 series can be selected for low-end point
Mining graphics card is faster than CPU, professional miner is faster than graphics card
so it's better to buy miner
in addition, it's not easy to make money from mining...
this is a configuration list of about 7000 hosts, and others are not included
2. A small upgrade is as follows (it costs about 800-1000 yuan without replacing the motherboard):
h81m motherboard: no replacement, graphics interface 2.0, memory interface DDR3 / 1600hz, hard disk interface SATA2
CPU: upgrade to the fourth generation i7-4770 (about 150-250 yuan for second-hand)
CPU radiator: Kyushu or overclocking 3 (about 50 yuan for new)
memory: upgrade to 4gx2 = 8g al channel / DDR3 / 1600hz (about 100 yuan for second-hand)
graphics card: the most popular graphics card is before the "6 Series" n card, such as gtx650ti, gtx660ti and gtx670 Second hand power supply: if i7-4770 + gtx650ti = 350W to 400W (new is about 200 yuan), if i7-4770 + gtx660ti = 450W to 500W (new is about 250 yuan), if i7-4770 + gtx650ti = 500W to 550W (new is about 300 yuan)
3 The major upgrade is as follows (about 1500-2000 yuan is needed to replace the motherboard):
CPU: upgrade to the 7th generation i7-7700, (about 250-350 yuan is used)
CPU radiator: Kyushu or overclocking 3 (about 50 yuan is needed for the new)
motherboard: b250m series, graphics card interface 3.0, memory interface DDR4 / 2400hz, hard disk interface m2, sata3 Second hand about 100-150 yuan)
memory: upgrade to 8gx2 = 16g al channel / DDR3 / 2400hz, (second-hand about 150-250 yuan)
graphics card: graphics card can use "7 Series" n card, for example: gtx750ti (second-hand about 250), gtx950 (second-hand about 450), gtx1050ti (second-hand about 550)< Hard disk 1: sata3 interface, solid state hard disk 120g, (second-hand about 80 yuan)
hard disk 2: sata3 interface, mechanical hard disk 500g / 7200 RPM / 64MB secondary cache, (second-hand about 150 yuan)
power supply: if i7-7700 + gtx750ti = need rated 400W to 450W (new about 200 yuan), If i7-7700 + gtx950 = need rated 450W to 500W (new is about 250 yuan), if i7-7700 + gtx1050ti = need rated 500W to 550W (new is about 300 yuan)