North- and Southbridges
Northbridges
AMD-xxx
A-Link Express II
A-Link Express and A-Link Express II are essentially PCIe 1.1 x4 lanes. See Comparison of ATI Chipsets for the comparison of chipsets sold under the ATI brand for AMD processors, before AMD's acquisition of ATI.A-Link Express III
A-Link Express III is essentially PCIe 2.0 x4 lanes.Southbridges
AMD-xxx
1 Parallel ATA, also known as Enhanced IDE supports up to 2 devices per channel.A-Link Express
* All models support eSATA implementations of available SATA channels. 1 Parallel ATA, also known as Enhanced IDE supports up to 2 devices per channel.Fusion controller hubs (FCH)
For AMD APU models from 2011 until 2016. AMD is marketing their chipsets as Fusion Controller Hubs (FCH), implementing it across their product range in 2017 alongside the release of the Zen architecture. Before then, only APUs used FCHs, while their other CPUs still used a northbridge and southbridge. The Fusion Controller Hubs are similar in function to Intel's Platform Controller Hub. Secure Digital: Codename: UMI:AM4 chipsets
There are currently 3 generations of AM4-based chipsets on the market. Models beginning with the numeral "3" are representatives of the first generation, those with "4" the second generation, etc. In addition to their traditional chipsets, AMD also offers "processor-direct" chipsets for "small, simple" motherboards. AMD describes the A300 chipset as intended for consumers, the X300 chipset for "enthusiasts and overclockers", and the PRO 500 chipset for commercial users. The A300 chipset is referred to byTR4 chipsets
Supports both 1st and 2nd generation AMD Ryzen Threadripper processors.sTRX4 chipsets
Supports 3rd generation AMD Ryzen Threadripper (3960X to 3990X) processors. Although the X399, TRX40 and WRX80 motherboards' CPU sockets use the same number of pins, the sockets are incompatible with each other due to ID pins and no-connects of some pins. Twelve TRX40 motherboards were released at launch in November 2019. The TRX40 chipset does not support the HD Audio interface on its own, so motherboard vendors must include a USB audio device or a PCIe audio device on TRX40 motherboards to integrate audio codecs.sWRX8 chipsets
Supports 3rd (3900WX) and 4th generation (5900WX) AMD Ryzen Threadripper Pro processors. Although the X399, TRX40 and WRX80 motherboards' CPU sockets use the same number of pins, the sockets are incompatible with each other due to ID pins and no-connects of some pins. Three WRX80 motherboards were released at launch in March 2021. The WRX80 chipset does not support the HD Audio interface on its own, so motherboard vendors must include a USB audio device or a PCIe audio device on WRX80 motherboards to integrate audio codecs.AM5 chipsets
AMD uses a single Promontory 21 chipset for all configurations that include a chipset. A single Promontory 21 chip provides four SATA III ports and twelve PCIe 4.0 lanes. Four lanes are reserved for the chipset uplink to the CPU while another four are used to connect to another Promontory 21 chip in a daisy-chained topology for X670 chipsets.See also
* List of AMD microprocessors * List of AMD Accelerated Processing Unit microprocessors * List of AMD graphics processing units * List of Intel chipsetsReferences
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