Intel Optane DC persistent memory modules are like DRAM in form factor and can be configured as volatile main memory, persistent memory or as a combination.
Server architectures have largely been boring. Boring has been good. It has helped applications thrive in a stable H/W ecosystem and innovate at providing business logic. While performance improvements have largely been single thread performance improvements extended to data center class systems, we are beginning to see a new era in Server architecture designs driven by memory technologies, accelerators and fabrics like Gen-Z, CCIX and Open CAPI that glue them.
X86, Memory centric architectures, Gen-Z, CCIX, Open CAPI