The demand for VLSI low voltage high-performance low power systems are increasing significantly. Today's deviceapplications necessitate a system that consumes little power and conserves performance. Recent battery-powered lowvoltagedevices optimize power and high-speed constraints. Aside from that, there is a design constraint with burst-modetype integrated circuits for small devices to scale down. Low voltage low power static CMOS logic integrated circuitsoperate at a slower rate and cannot be used in high performance circuits. As a result, dynamic CMOS logic is used inintegrated circuits because it requires fewer transistors, has lower parasitic capacitance, is faster, and enables pipelinedsystem architecture with glitch-free circuits. It has, however, increased power dissipation. Both types of CMOS circuits withlow power dissipation overcome their own shortcomings.This paper discusses dynamic CMOS logic circuits and their structures. Various logics are also discussed and on the basisof the results obtained, logic which is best suited for designing CMOS logic circuit will be found out. The logic on the basisof structure layout and design which gives best results for high-speed VLSI circuits, is found out.