In recent technology especially in the industrial fields, the computers are exploited as controlling and monitoring tool to help in system development. As a result, most of the computer problems in various applications are slow speed and poor performance. In this paper, the design strategy was posed to show how to assist in improving both speed and performance. There are many factors that affect the performance of the computer such as the processor speed, the size of RAM, and the weakness of the cache memory strategy for the processor. These factors are the most influential factors on the speed and performance of the processor, which are result in performance deterioration. Most cache memories are designed outside the processor units which are affecting the data transfer speed to/from the processor, delayed processor data access time, and processor access time. The C++ program was employed as simulation tool for performance evaluation to clearly show the effect of the cache memory. The simulation results explicit the great impact of the added cache memory on both the processor speed and the computer performance when the cache was designed inside the processor unit. Also, shows negative results when designing the cache outside the processor unit.