Northbridge is one of the chipsets on a PC motherboard which handles communications among CPU, Southbridge, Graphics unit, System memory and PCI Express.
AMD Fusion processors and Intel 2nd generation core i3/5/7 series have integrated Northbridge on their chip. In older processors the CPU, Graphics and Northbridge were separate chips. This Northbridge chip had integrated memory controllers and was known as Integrated memory controller hub (IMCH).
In newer designs the Northbridge also integrated Graphics processor into it and the chip was called as
Graphics and Memory Controller Hub (GMCH). The overall trend in processor design has been to integrate more functions onto the chip which decreases overall motherboard cost and improves performance.
AMD Fusion processors and Intel 2nd generation core i3/5/7 series have integrated Northbridge on their chip. In older processors the CPU, Graphics and Northbridge were separate chips. This Northbridge chip had integrated memory controllers and was known as Integrated memory controller hub (IMCH).
In newer designs the Northbridge also integrated Graphics processor into it and the chip was called as
Graphics and Memory Controller Hub (GMCH). The overall trend in processor design has been to integrate more functions onto the chip which decreases overall motherboard cost and improves performance.
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