In ESXi Hypervisor enhancement includes
Hot-pluggable PCIe SSD Devices : It supports SSDs (Solid State Disks) devices, and with a new enhancement, SSD device can be removed or added while a vSphere host is running.
Support for Reliable Memory Technology : vSphere ESXi hypervisor can take advantage of new hardware; vendor enabled Reliable Memory Technology, through which a region of memory is reported from the hardware to vSphere ESXi hypervisor. It is used to enhance the placement of VMKernel and other components like initial thread and hosted. It helps to protect against memory error
Enhancements to CPU C-states : A power process (C-state) is used to provide additional power savings.
