Can you still build mining rigs with 6gb GPUs like gtx 1660s in 2022? For how long can this graphic cards keep up with mining? I'm sure they are better option over rx580 4gb, what do you think?
https://minerstat.com/dag-size-calculator?lang=enYou can mine ETH until august 2024.
But you can mine Flux for ever for example, 6GB are more future proof, but it depends on how long you plan to mine, what coin you wish to mine and what the crypto market do in the future.
I prefer cards with 8GB or more.
It won't matter anymore once ETH get rid of pow algorithm in few months to this time, you should be hearing about this already I believe so if anyone is planning to build a mining rig for future reasons I suggest they should erase ETH mining from their plan