The Differential Memory Interface is a proprietary interface developed by IBM designed to transport memory commands, data, and address through a high-speed SerDes from a host CPU to an OPMB-compliant memory buffer chip. DMI is a memory-agnostic interface which may be used any sort of memory by abstracting the details behind the buffer chip. DMI was first introduced with POWER8.
|Data Rate||9.6 GT/s||9.6 GT/s|
|Links||4x DMI||4x DMI|
|Bandwidth||28.8 GB/s||28.8 GB/s|