As　a　important　step　in　SoC　design,　good　architecture　design　is　the　foundation　to　ensure　the　final　structure　to　meet　the　design　specifications.　In　paper,　the　minimal　SoC　system　used　for　performance　compare　between　basic　architectures　is　defined,　which　is　consisted　of　embedded　processor,　on　chip　bus,　on　chip　memory　and　IP　(GPIO).　Then　six　SoC　architecture　based　on　32　bit　embedded　RISC　processor　is　studied,　and　comparison　and　analysis　are　discussed.　©　2012　IEEE.