Intel is giving finishing touches to a new wave of Xeon Scalable processors based on its new "Cascade Lake" silicon. One of its first parts is a 28-core chip with a 6-channel DDR4 memory interface, support for 3 DIMMs per channel, resulting in 18 DIMM slots per socket. Its integrated memory controllers support a theoretical maximum of 3.84 TB of memory. The best part? The memory needn't be DRAM-based.

With its next-generation of enterprise processors, Intel is introducing support for Optane Persistent Memory. This 3D X-point based memory module has a performance footprint between NAND flash SSDs and volatile DRAM; while being close enough to the latter to work as primary memory. Its USP is persistence - the ability to not lose data after power loss or reboot; allowing large data centers to quickly power down/up nodes in response to load, without wasting several dozen minutes in repopulating DRAM with data from a hibernation image. Optane Persistent DIMMs come in capacities of up to 512 GB. This is simply 512 GB of 3D X-point memory wired to a special on-DIMM controller that interfaces with standardized DDR4 interface.