Systems, methods, and computer-readable media for transferring data between a host platform and modem circuitry are provided. At low data rates, data may be stored by on-chip memory, and data may be transferred from the on-chip memory to the host platform over an interconnect (IX) when a first aggregation period expires. At medium data rates, data may be stored in both the on-chip memory and in in-package or off-chip memory, and the data may be transferred from the on-chip memory and off-chip memory to the host platform over the IX when a second aggregation period expires. At high data rates, the on-chip memory may serve as an elastic buffer, and the data may be streamed directly through the on-chip memory to the host platform over the IX. Other embodiments are described and/or claimed.