4.4 Energy-efficient microserver based on a 12-core 1.8GHz 188K-CoreMark 28nm bulk CMOS 64b SoC for big-data applications with 159GB/S/L memory bandwidth system density MicroServers integrate an entire server motherboard into a single Server-on-a-Chip (SoC), excluding DRAM, NOR-boot and power conversion circuits. This technology has evolved to 64b processing able to run server-class operating systems (OS), and the newest SoCs also target cloud computing and business SW [1]. The DOME μServer [2] packages the T4240 SoC in a dense node.