In connection with the increasing popularity of mining, people’s interest in the issues of mining the crypto currency and the necessary equipment through which this process takes place increases. Users who decided to tackle crypto-currency mining at home immediately encounter the question: on which processor is the central (CPU) or graphics (GPU) processor?
If we consider the CPU, it gives a very small resource for mining. From the point of view of electricity and equipment cost, mining on a computer processor looks rather promising, but if you consider the speed factor for processing a huge amount of information, then you will need investments in powerful processors in the amount of tens of thousands of dollars – while mining on weak video cards of $ 400-500 will provide performance is not much lower.
How to start a mine on a video card?
To create a working GPU-farm for mining requires a number of technical devices and devices. First you need to select a video card. To date, a farm that operates at a minimum of 4-6 video cards is considered to be profitable. Less to take does not make sense, because the profit will be so small that the costs will pay off soon. If you can afford a budget, it’s better to buy eight video cards at once: such a farm is optimal in terms of income and expenses for the average miner.
The best way to choose the right video card is to determine its profitability. You can do this by defining the device hasheath and calculating the profitability of the mining (including the selected crypto currency, hasht, GPU power and the cost of electricity) on a special online calculator.
Technical parameters that affect the payback of video cards:
- memory capacity of the video card, Mb;
- frequency of GPU, Mhz;
- frequency of memory, Mhz;
- power consumption, W.
The first 3 indicators will affect the speed of the mining process (hashed), and the 4th – on the cost of electricity. It is worth noting that a reasonably designed farm is able to cover most of the existing crypto currency, but in practice some video cards work better with one currency, others with others. Therefore, you first need to determine the type of currency and then after that choose the right equipment.
Until recently, MSI Radeon video cards were considered as the undisputed leader in the field of mining, and among them was the 470 RX line, capable of running at a very decent speed of 30 MH / s. It is very difficult to find it now, since the queues from the miners to it are huge, but if there is such a possibility, it’s worth using: this proven model will pay off very quickly.
An alternative to MSI Radeon, are GeForce from NVIDIA. The leaders for home farms among them now are the GTX1070 and GTX1080ti. The first is capable of delivering a speed of 28 MH / s, and the second – as much as 35 MH / s, but the price at it is approaching $ 1000.
There is also information that Nvidia is preparing specialized video cards for mining under the names P104-100 and P106-100. These solutions differ from the classic video adapters in that they do not have video outputs, are equipped with weak cooling and have a limited warranty. That’s why the average user is still more profitable to purchase a top-end solution in the face of the same GTX 1070, because it can always be sold to a gamer, thereby partially discouraging its original cost.
Additional equipment for mining on video cards
In addition to video cards, special attention should be paid to the choice of motherboard and power supply. The motherboard must have ports (slots) in which you can place the required number of selected video cards. Usually it is a question of ports РСI-Ex1 and РСI-Ex16. In addition, do not take the weakest fee, otherwise one day its resource will be exhausted. A good solution is the MSI Z270.
As for the power supply, it should preferably have a certificate of 80 + Gold, which is a guarantee of its quality and reliability, and it must be selected in such a way that it will work approximately 50% of the declared capacity.
Is it possible to mine on older video cards?
Mining means overclocking the device to its maximum limits. If you are using an old GPU, this can result in loss of performance due to increased temperature and improper operation. Try to use new models that already have a reliable cooling system built in. Such a system during overclocking will not allow overheating. As a rule, the later the date of issue of a card, the more stable and effective its work at maximum loads. Which is exactly what is required in the mining.
Also, if you are going to save on equipment, then the production of crypto currency on cheap cards will be economically inexpedient if the performance of the video adapters does not provide this condition.