Cascaded CMOS inverters of different ratios surpass a single inverter for several reasons. Firstly, they improve noise margin, enabling the circuit to withstand noise without compromising functionality. Secondly, cascaded CMOS inverters amplify output voltage swings, leading to enhanced signal integrity and noise immunity. Moreover, they optimize power efficiency, resulting in reduced power consumption. Lastly, cascaded CMOS inverters minimize propagation delay and critical path delay, thereby enhancing speed and performance. These advantages establish them as the preferred choice for modern digital circuit design, facilitating the creation of circuits that are reliable, efficient, and high-performing.