The differences between the power supply?

An article already exists regarding the hardware to buy depending on the number of graphics cards it takes to get the best price, you can find it here. For the feeds we had to explain with concrete calculations which food to choose and the reason for this choice. To choose a diet you have to take several things into account:

  • Its country of residence/cost of electricity
  • Food Purchase Price

A power supply with 80 Plus certification means that it will have a minimum yield of 80%, so it is a required criterion but not only because a loss of 20% is still significant. There are several “scales” thereafter for each power supply with the 80Plus standard:

  • Bronze
  • Silver
  • Gold
  • Platinum
  • Titanium

Below is an image explaining the performance of each range. In the field of mining you will often see that people advise to take a Gold diet, the reason is simple is that the difference in yield compared to a Platinum is not so different (3%) while the purchase price between the two is Important off promotion.


If your electrical cost is not important you can very well take a diet of the Bronze range or even server feeds like this if you find it at good price: usually you have to do some DIY, it is necessary to you Fill in Before you buy, an article will be made about it if you are interested.


Returning to the “conventional” type of supply, a Bronze or titanium supply will not have the same quality, the materials in the titanium feed will have a better quality. It is for this reason that the manufacturer “Seasonic” for example displays a warranty of 12 years manufacturer. Now let’s take two different feeds, one bronze-type power supply and another titanium to watch the money you lose (or win) by choosing a titanium feed compared to a bronze feed. Our example will be for France with a normal electricity rate, i.e. €0.15 per kWh. Our choice was therefore on the following two feeds:

Test of the difference in yield loss (19%) of the Bronze Diet: 1000 W x 24 (hours) = 24000×30 (30 days) = 720000w x 12 (month) = 8640000w (8.6 million watts per year) 0.15 € (Elec cost) x 8640 (kw) = €1296 = Cost per year with 1000w consumed on a Period of 365 days. €1296 x 19 (yield)/100 = €246.24——Loss of 19% per year from performance €260-€108 = €152——–difference in purchase cost between Lepa 1000 W Bronze and Seasonic 1000 W Titanium. Test for the difference in output loss (9%) of the Titanium power supply: 1000 W x 24 (hours) = 24000×30 (30 days) = 720000w x 12 (month) = 8640000w (8.6 million watts per year) 0.15 € (Elec cost) x 8640 (kw) = €1296 = Cost per year with 1000w consumed on a Period of 365 days. €1296 x 9 (output)/100 = €116.64——Loss of 9% per year over performance €260-€108 = €152——–difference in the purchase cost between the Lepa 1000 W Bronze and the Seasonic 1000 W Titanium.


Result + explanations: we lose €246.24 to the year because of the 19% loss on the Bronze diet. We lose €116.64 to the year because of the 9% loss on the Titanium power supply. On the other hand the cost of purchasing the Titanium power supply is €260 and the €108 Bronze power supply. €246.24-(minus) €116.64 = €129.6 difference in the loss of performance between the two feeds. €152/€129.6 = 1.17 years to start becoming profitable with the Titanium diet compared to the Bronze power supply.


The result of the comparison is simple, if you buy a Titanium diet this one will be profitable in about 1 year compared to the Bronze diet. At Cryptos-Mining we recommend a power supply of the Gold range, it will have a performance difference of only 3% compared to a supply of the Titanium/Platinum range. On the other hand the difference of the purchase price will be important between the two. You can adapt this calculation to make your comparisons easily!   If you have any questions, if you think it is missing something important to add or correct do not hesitate to write a comment.



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