AMD’s Upcoming Socket AM5 for Raphael Processors to Lack PCIe 5.0 Support

AMD was the first company to support the PCIe 4.0 protocol in its processors and accompanying motherboards. However, according to the latest information coming from the recent Gigabyte hack that already produced a plethora of new information, AMD will not bring support for PCIe 5.0 to its forthcoming socket AM5 motherboards, at least not initially. 

According to TechPowerUp, which got ahold of Gigabyte’s leaked documents, AMD decided to stay off the PCIe 5.0 wave with its upcoming AM5 CPU socket designed for its codenamed ‘Raphael’ processors.

The diagram below shows that AMD has given socket AM5 as many as 28 PCIe lanes. And those lanes run the PCIe 4.0 version protocol, which is the standard protocol today. Out of 28 lanes, 16 are devoted to the PCI express slot for graphics expansion, four for an M.2 SSD, four lanes for SATA expansion, and the remaining four for chipset communication with the socket.  

AMD Socket AM5 Diagram

(Image credit: TechPowerUp)

The surprising bit is that AMD is falling behind Intel in the interconnect space. At yesterday’s Intel architecture day, the company revealed that the upcoming Alder Lake series of processors will deliver PCIe 5.0 connectivity. Expected to be a competing product with AMD’s Raphael, it will certainly boast a newer communication standard for higher-speed communication between PCIe devices.

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