The Xeon D processor line for Intel has been a combination of networking / microserver processor that has significantly increased in core count, power, and capability in the previous generation. We have two splits – the 500 family for networking, and 100 families for higher performance. Today Intel is revealing the name of the successor to the D-1500 family: Hewitt Lake.
The D-1500 processors were built on Skylake-SP silicon designs with on-pack chipsets to help accelerate networking functionality as well as implementations of Intel's Quick Assist Technology (QAT) to process encrypted data streams much faster with proper offloading hardware.
Intel does not disclose much about the new processor line. At this point we suspect that they will use the latest Cascade Lake silicon design, which provides additional hardware security against specific Spectre and Meltdown attacks, VNNI instruction extensions, and Optane DC memory support. The Intel Chipset will be in the chipset, and there is no obvious indication that Intel is doing something new here.
Intel says that the new Hewitt Lake processors will increase in frequency over current generation D-1
If previous reports are anything to go by then Intel will launch Cascade Lake in the next few months. Cascade Lake derived processors, should Hewitt Lake be related in anyway, are likely to be one or two quarters later.