NVIDIA GTX 1080TI
The GTX 1080Ti is for now the best graphics card in terms of price / quality / life that is available on the market for mining cryptocurrencies. It exceeds a hashrate of 32Mh / s without modification is its power consumption remains reasonable even if it is higher than other cards. The interest of a 1080Ti lies not only in its power but also in its lifetime that could be longer than its sisters. It is a versatile card that is also very powerful in games, even in 4K.
Average price: 800 €