Your question really does not make any sense. You can make whatever power you want at whatever cadence you want. If you're asking at which cadence you are the most efficient, that is a much more complicated question and I don't think there's any software out there that can just figure that out for you. The Pioneer powermeter will analyze how even your pedal stroke is but that is totally different than asking what cadence is most efficient for you from a physiologic standpoint.