Chipzilla said that the new chips are socket-compatible with the older E-2100 line so existing servers can be upgraded.

The Xeon E-2200 processors are for entry-level servers, coming in 4-core and 6-core designs and a new 8-core product capable of hitting 5.0 GHz with Intel’s Turbo Boost Technology 2.0.

A notable feature of the E-2200 is hardware-enhanced security using Intel’s Secure Guard Extensions (SGX), which features hardware-level encryption, such as real-time memory encryption into what Intel calls enclaves. This is designed to prevent the contents of the enclave from being sniffed or otherwise spied upon.

This would appear to be similar to AMD's  Secure Encrypted Virtualization (SEV), which offers full real-time encryption of virtual machines to isolate guests and VMs from each other. SGX does something similar, and with the new eight-core processors, the capacity of these encrypted areas has doubled over the previous 2100 line.