The data show how asynchronous circuit delays differ across input operands. They also show energy consumption for the mean set of operands. The mean set of operands are those operands whose delay values match the mean of the entire dataset. The data also contrast the energy consumption of clocked (non-asynchronous) equivalents of the asynchronous circuits. Data for adder and comparator circuits are given. The data include the operands used in simulation to obtain the results.