Like half the pins in a CPU socket are ground and power. The copper planes carrying power from the VRM to the socket are massive. Wide and thick. The CPU die it

Like half the pins in a CPU socket are ground and power. The copper planes carrying power from the VRM to the socket are massive. Wide and thick. The CPU die itself has large networks of metal interconnect that get finer and finer to supply smaller and smaller areas, much like our circulatory system. You can see these on die shots of older parts as well, e.g. http://www.righto.com/2016/12/die-photos-and-analysis-of_24.html http://www.righto.com/2016/12/die-photos-and-analysis-of_24.... notice the thick traces which start to fan out quickly. Also consider that there's 10+ billion transistors for those 200 A to go around.