Presenting a reference architecture for High Performance Embedded Computing for use in Ground Vehicles, based on OpenVPX, up to 40 Gigabit / Second data fabrics (Infiniband and Ethernet), methods of Remote Direct Memory Access, and Open Standard software layers (OFED). How to provide the appropriate chassis and backplanes to accommodate the HPEC modules, Signal I/O, and data fabrics which can then provide sophisticated capabilities, such as software defined radios, active protection systems, electronic warfare, and sensor processing (fusion and analysis). Illustrate paths for technology refresh, showing historical and expected gains in hardware performance across technology refresh cycles and the SWaP-C reduction for a fixed amount of processing capacity over time.