You should pay attention to the video cards of this line. Among the models from Nvidia, you can hardly find the best option for upgrading or assembling a new farm.
GTX 1660 SUPER graphics card outperforms price / performance… The card is cheaper than the older version of the GTX 1660 Ti, but almost as good as it gets. At the time of this review, the GTX 1660 SUPER graphics adapter remains one of the best options for building a budget mining farm. But, if you want to profitably sell used video cards later and are not particularly constrained in funds, buy Nvidia cards of the 30th line, or video cards from AMD 5700 XT.
Following the prices of Ether and other cryptocurrencies, the prices of video cards have skyrocketed. Moreover, the 1660 model is leading in terms of the growth rate of value, but, after all, Ethereum has also greatly increased in price, and this is not a ceiling yet. A farm of ten 1660 SUPER will earn you about 1,500 rubles per day, then count yourself.