CPU: Amlogic S905X4 Quad core ARM Cortex-A55 for X4Q Pro and X4Q Plus, Amlogic S905X4 Quad core ARM Cortex-A55 for X4Q Extra. CPU:Amlogic S905X4 Quad core ARM Cortex-A55 for X4Q Pro and X4Q Plus, Amlogic S905X4 Quad core ARM Cortex-A55 for X4Q Extra....