The location is different: the south bridge chip is located near the IDE interface or SATA interface of the hard disk, and the north bridge chip is located near the CPU.
Different functions: the south bridge chip is responsible for the communication between the I\/O bus, and the North bridge chip is responsible for the contact with the CPU and control the memory AGP data transmission in the North bridge;
Different features: The South Bridge chip has dual-chip design, integrated network, high-quality audio, video card working bus and other features.