Rapidly evolving technology, increased internet speed and capacity, and the widespread use of mobile technologies have increased the demands for faster applications and less power consumption of modern electronic systems. In modern electronic systems, RAM is as effective as CPU regarding performance and power consumption. Although DRAM is the most used types of main memory today, it has been insufficient in terms of provide increasing demands. One of the issues to be addressed is to improve DRAM in terms of performance and power consumption. Another study to address this increasing demand is the development of hybrid main memory architectures. Hybrid Main Memory is one of the most recent studies on RAM. In this research, we investigate hybrid main memory systems for a more efficient main memory architecture.