Analysis of power-performance trade-offs in DRAM-NVM based hybrid main memory

Abstract

Conventional DRAM based memory systems are facing issues such as scalability and high static energy consumption. Non-Volatile Memory devices are byte addressable, can withstand data even in the absence of power and provide good density; all these features have attracted them to be used in various levels of memory hierarchy. However there are few drawbacks because of which they cannot replace the existing memory devices. Hybrid Memory architectures are an amalgamation of two or more types of memory technologies which help to utilize benefits from both technologies. In this work, we have tried to analyze the impact of varying NVM size on power and performance in Hybrid DRAM-NVM based devices. The experimental results shows average power reduction of up to 46.2%, 63.7% when PCM was increased from 1GB to 2 GB and 3 GB, respectively. © 2023 Author(s).