AMD internally refers to the finished product as the SoC, and the chipset (no longer a northbridge, the NB is on die) as a socket extender (a term also used by

AMD internally refers to the finished product as the SoC, and the chipset (no longer a northbridge, the NB is on die) as a socket extender (a term also used by most SoC vendors) in internal documentation. Also, arguably, the IO Die is the SoC, the chiplets are external to the SoC even though they all live on the same interposer.