How to calculate power consumption for these GPUs? And how to calculate CPU "demand" for each GPU?
Are you wanting to know how much you will lose by entering the mining game? Don't bother. Unless you have "free" power.
So unless people have free power they shouldn't start mining? then what good mining is for if only those with free power having the advantages, why would anyone invest in crypto if only the big companies with cheap power can have all the benefits?