Northbridge is an Intel
chipset that communicates with the computer
processor and controls interaction with
memory, the Peripheral Component Interconnect (
PCI)
bus, Level 2
cache, and all Accelerated Graphics Port (
AGP) activities. Northbridge
communicates with the processor using the frontside bus (
FSB). Northbridge is
one part of a two-part chipset called Northbridge/
Southbridge. Southbridge
handles the input/output (
I/O) functions of the chipset.
The Intel Hub Architecture (IHA) has replaced the
Northbridge/Southbridge chipset. The IHA chipset also has two parts: the
Graphics and AGP Memory Controller Hub (GMCH) and the I/O Controller Hub (ICH).
The IHA architecture is used in Intel's 800 series chipsets, which is the
first chipset architecture to move away from the Northbridge/Southbridge design.
Contributor(s): Jason Rush
This was last updated in June 2001
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