It is an interesting fact with the Gtx 1080 ti that some of you may know but some maybe don't.I run one of them and it is said to be doing 45 Mhsh,to me it does near 43 Mhsh in Ethereum mining but once I tried for fun the Ethereum Classic it did exactly 50.9 Mhsh which you can compare it with the Rtx 3060 non LHR,Rx 5700 Xt does just a bit more at 54 Mhsh so the fun fact about this card is that despite being of old generation it is well up to the fight with bigger and newer cards,this I think is the best card Nvidia has produced considering launch time of the card.
https://minerstat.com/dag-size-calculatorThe larger the DAG file size, the lower the hashrate of the Nvidia 1000 series video cards.
At 1070Ti, the decrease in hash rate is not so noticeable.
The gtx 1080 ti is very old and consumes a lot of power. These cards are very hot.
It is very risky to buy them now.
They are not that hot,I have one with 2 fans EVGA for the win and it runs at 60 degree Celsius max in a very hot temperature with fans at 82%,the ones with three fans runs even lower.The dag size I don't see any impact here as the card is 11 GB so there is quite some time for any Ethash dag to grow near.The power consumption at 70% power limit and it does 50 Mhsh in Ethereum Classic or 43 Mhsh in Ethereum which is not bad for the time we are in now.Consumption is 165 watt which I consider average and not that bad for the hash rate it gives,sure it can't compete with newer 3000 series from Nvidia but it surely can compete with that Rx 6700 xt which does just 47 Mhsh at 120 Watt which has no big difference in hash rate just in electricity a bit more.