Well I'm going to go against my better judgement and...answer his question.
On a per-milligram basis, Adderall is stronger and considered by most to be more euphoric. The effects are a little different though so it is hard to say x mg's of Ritalin equals y mg's of Adderall. A rough estimate would be that Adderall is about twice as strong as Ritalin, but like I said, the highs are pretty different. If you need more info, do a search.
Honestly, aside from the grammer, what was so hard to understand about his post?
"Topic: Adderall and Ritalin Dosage"
"do they differ for the same high? what is the difference?"
And for some reason, I think that quite a few bluelighters don't know what UTFSE means since they don't frequent the h**e.
I'm sure you "elite bluelighters" think you are helping the forum by trying to discourage these type of questions but what is worse, 10 replies telling the poster he is an idiot or 1 reply answering the question? If you aren't answering the question or trying to, why bother to post?