DDR5 DRAM will allow smaller and denser memory chips to be made using the latest manufacturing processes. The DDR4 specification, which was finalized many years ago, wasn't designed using the latest 14- and 10-nanometer manufacturing processes, but for the older 40- to 50-nanometer processes.
DDR5 could live until 2025, and that may give breathing room for the new memory types to develop, Howard said. "A lot of the DDR5 development gets back to the shortcomings for DDR4," Howard said.
DDR5 deployment could follow the same arc as DDR4, which is still ramping as DDR3 slowly fades. Initially, it will be expensive, but as the volumes ramp, it should get cheaper.
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