Can you buy a 3090Ti for mining or 3090? I heard the difference in performance is not big, the information I found online says 135MH on 3090ti even if you can get this card for MSRP is it worth it since 3090 is very close in performance too.
You can use for example a calculator on the website hashrate.no to see the performance and approximate revenue when using the 3090ti and compare with others, as well as the approximate payback period and it will not be in favor of the 3090ti.
From this list the best from Nvidia is A5000 because it has the GDDR6 memory compared to the other cards of Nvidia here which all have the GDDR6X and we all know the temperature problems they have.Only the price is somewhat high at near 2000-2300 USD now at Ebay and international markets together with the cooling,these cards have blower cooling style so additional cooling is needed.For me this is the best choice from the ones in the list once price is not a problem and consequently additional cooling too.