Memory and storage have traditionally been distinct components in computing systems. Memory, such as SRAM, DRAM, and HBM, provides fast access to data but is volatile and requires power. Storage, like HDDs and SSDs, is non-volatile and retains data even when powered off, but with slower access times. However, with new technologies like Intel’s Optane and the emergence of CXL (Compute Express Link), the line between memory and storage is blurring. CXL offers low latency, coherency, and memory pooling, allowing for the creation of large memory pools that can be accessed by multiple systems. This opens up possibilities for solving complex problems and creating innovative architectures. CXL is rapidly becoming the preferred interface for managing and sharing large amounts of memory and enabling composable and disaggregated architectures.
https://www.synopsys.com/designware-ip/technical-bulletin/cxl2-3-storage-memory-applications.html