A semiconductor device assembly includes a substrate, a first stack of semiconductor dies disposed directly over a first location on the substrate, and a second stack of semiconductor dies disposed directly over a second location on the substrate and electrically coupled to a second subset of the plurality of external connections. A portion of the semiconductor dies of the second stack overlaps a portion of the semiconductor dies of the first stack. The semiconductor device assembly further includes an encapsulant at least partially encapsulating the substrate, the first stack and the second stack.