Several next-generation memories, including MRAM, PCM, and ReRAM, are currently shipping to varying degrees. Extensions of these technologies make up some of the upcoming new Next Generation Memory Technologies. Others, such near- or in-memory computing, which brings the processing duties close to or inside of memory, are based on wholly new technologies or include architectural changes.
A prospective SRAM replacement is one of the new technologies being developed by the industry. Typically, processors combine a CPU, SRAM, and a number of other tasks. SRAM keeps track of instructions that the processor will quickly need. It is referred to as Level 1 cache memory. While running, the CPU will occasionally forget to request instructions from the L1 cache. Thus, processors also incorporate Level 2 and Level 3 cache, also known as second and third level cache memory.
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