The ability to estimate power consumption in a design is imperative for efficient part selection, board design, and system reliability. The Xilinx® Power Estimator tool with its up to date power models and ease of use features is meant to guide and simplify design usage entry. Although gathering FPGA and SoC usage data might seem difficult in the early design development phases, you can derive accurate power estimations with a little thought and using XPE. XPE simplifies device selection and helps parallel development of the Xilinx device logic and the Printed Circuit Board. Finally, XPE helps exploration of alternative implementation and resource configuration when supply power or thermal budgets are exceeded.