Embodiment of the present disclosure describe integrated circuit package assemblies that allow for relatively short connections between devices such as a processor and memory. In one embodiment, a package assembly includes a die embedded in a subpackage directly coupled to another die attached to the subpackage. In some embodiments the subpackage may also contain power management devices. In some embodiments the die embedded in the subpackage and/or the power management device may overlap, or be located in, a region defined by the die coupled to the subpackage such that they are located between the die coupled to the subpackage and a substrate underlying the subpackage. Other embodiments may be described and/or claimed.