High-performance 64-bit binary comparator

High-performance 64-bit binary comparator is proposed in this brief. Comparison is most basic arithmetic operation that determines if one number is greater than, equal to, or less than the other number. Comparator is most fundamental component that performs comparison operation. This briefly presents comparison of modified and existing 64-bit binary comparator designs concentrating on power consumption and delay. Means some modifications have been done in existing 64-bit binary comparator design to improve the performance of the circuit. Comparison between modified and existing 64-bit binary comparator designs is calculated by simulation that is performed at 90nm technology in Tanner EDA Tool.