Nios II系列软核处理器是Altera的第二代FPGA嵌入式处理器，其性能超过200DMIPS，。Altera的Stratix 、Stratix GX、 Stratix II和 Cyclone系列FPGA全面支持Nios II处理器，以后推出的FPGA器件也将支持Nios II。(The Nios II family of soft core processors is the second generation of Altera's FPGA embedded processor that provides support for Altera's Stratix, Stratix GX, Stratix II, and Cyclone FPGA families that exceed 200DMIPS in performance.)