Abstract: This paper presents the implementation and comparison of high speed multipliers which depends on booth encoding. In this, we compare the performance of Radix-2 and Radix-4 based on booth multipliers. The multipliers are designed for 8X8 bit multiplication operation. We proposed designs of Booth algorithm which is called Modified Booth algorithm using Radix -4 has been designed using VHDL and synthesized, implemented using Xilinx ISE Sparten 3 Board. We compare the terms according to the critical path delay, cost, area and power consumption.

Keywords: Basic Booth Multiplier using Radix-2, Modified Booth Encoding using Radix-4.