This device is not primarily targeted for low-power applications so Power estimation tool is not provided.
The only information we have on current is in the datasheet where we give only the worst-case figures. We do not have data taken for single core operation or reduced frequency operation. The worst-case current draw is dominated by leakage current at hot temperature and fast process. Clock speed does not significantly reduce this number.
As for I/O current, this depends on pad usage in the customer application. See table 11 in the datasheet, rev 14.
