Two families of CPUs from AMD. EPYC CPUs for servers launched in 2017 followed by the CPUs for embedded systems in 2018. Both families use AMD's Zen microarchitecture and have from 16 to 192 cores. Top models have considerably more cores than their desktop counterparts.
EPYC server chips have built-in security features for virtual machine processing in datacenters. Using randomly generated AES hardware keys, AMD's Secure Encrypted Virtualization (SEV) encrypts each VM's memory. SEV also encrypts the registers. See
AMD and
virtual machine.