Maybe new on intel
IBM calls it Capacity On Demand:
https://www.ibm.com/support/pages/capacity-demand-users-guide
Same with oracle Exadata:
https://docs.oracle.com/cd/E80920_01/DBMLI/exadata-capacity-on-demand.htm#DBMLI147
And Azure,GC,AWS,Facebook etc surely have this in their datacenters.
But this is becomming commodity: