This document presents a comparative study of microprocessors from a historical perspective, detailing the evolution of various generations from the first microprocessor in the 1970s to modern high-performance processors. It outlines the advancements in technology and the specifications of notable processors over the decades, including Intel Celeron, Pentium, and Xeon. The study emphasizes the trend towards multi-core processors while acknowledging challenges such as the memory wall limiting performance gains.