Calculate PassMark


I want to set up a DIY 3node. Only I read that there might be a minimum passmark for the cpu in the future, which will be 1000 per CU.

But how exactly should I interpret this? Is there more information about passmark regarding threefold? Is there anything clear about how the rewards will be influenced if you do not reach this 1000.
Is the needed amount of passmark the number of CU that comes from the formula: cu = min((mru - 1) / 4, cru * 4 / 2, sru / 50)? Since this also includes memory and SSD. Or can you take the number of threads of your processor multiplied by 1000 to see how many passmark you cpu would need?

Hopefully someone know,