Before revision: Intel's version of this is the "Platform Controller Hub" (PCH) while AMD's version was called Fusion Controller Hub , which is effectively an enhanced southbridge for the remaining peripherals—as traditional northbridge duties, such as memory controller, expansion bus (PCIe) interface and even on-board video controller, are integrated into the CPU die itself (the chipset often contains secondary PCIe connections though).
After revision: (FCH)Intel's version of this is the "Platform Controller Hub" (PCH) while AMD's version was called Fusion Controller Hub , which is effectively an enhanced southbridge for the remaining peripherals—as traditional northbridge duties, such as memory controller, expansion bus (PCIe) interface and even on-board video controller, are integrated into the CPU die itself (the chipset often contains secondary PCIe connections though).