This message was posted on behalf of Intel Corporation
The document that you sent is related to how to enable and disable processors in multiple socket boards. It means server boards capable of supporting 2 or more processors (CPUs) and not processor Cores. (CPU Cores).
It is possible to turn off some of the Cores from the BIOS and the power consumption would decrease a little a bit. Cache memory and other features are shared by all the Cores so the active Cores would take advantage of the free memory.