I see this in a few places (mostly Chris Evan's excellent blog), and I assume neither Micron nor Intel engineers/managers are idiots to discontinue the tech, but why would CXL "replace" Optane?
CXL is an extension to PCIe architecture which allows even early on add more memory, including adding dram blocks onto a PCIe bus.
Optane (aka 3D-Xpoint) is a specific persistent memory type, which, unlike traditional NAND Flash storage, allows very low latency.
Optane, specifically PMem, was meant to supplement a more expensive DRAM to allow near-Dram speeds in-ram processing.
CXL would address the architecture where pmem was meant to fill, but it doesn't make dram any cheaper.
Am I missing something here?
CXL is an extension to PCIe architecture which allows even early on add more memory, including adding dram blocks onto a PCIe bus.
Optane (aka 3D-Xpoint) is a specific persistent memory type, which, unlike traditional NAND Flash storage, allows very low latency.
Optane, specifically PMem, was meant to supplement a more expensive DRAM to allow near-Dram speeds in-ram processing.
CXL would address the architecture where pmem was meant to fill, but it doesn't make dram any cheaper.
Am I missing something here?