What methylphenidate dose do you think is equal to 80mg of strattera?

I was looking through some studies and saw that methylphenidate OROS (concerta) outperformed strattera however when I looked at the dose they used in the studies it was really high for concerta, also higher for strattera but from my understanding of the literature more than 80mg generally doesn't do anything more.

So for those who have used 80mg at least 4 weeks and methylphenidate in the past, what is your experience? Which methylphenidate dose has the same potency for you?