Documents show AMD AM5 will use DDR5 and PCI-E 4.0, not 5.0

According to new documents stolen during the attack on Gigabyte, the AM5 platform's I/O scheme has been published, revealing that 600 Series motherboards would use DDR5 memory and that PCI-E 4.0 will continue to be used, at least in Ryzen 7000s.

Specifically, it verifies that DDR5 memories will be supported in Dual Channel configuration, allowing a maximum of four RAM modules to be installed, as has been typical in “Mainstream” platforms for many years. There will be 16 lines dedicated to GPUs on the other side of the PCI-Express 4.0 lines coming from the CPU, 4 lines for an M.2 NVME SSD, and another 4 lines for a USB 4.0 controller that will also have a Displayport connection to allow it to work in alt-mode. There will also be a Displayport connection to allow it to work in alt-mode. Two video outputs, two USB 2.0 ports, one USB 3.2 Gen2 port, sound connections, and the connections for the BIOS are among the other connections that come out of the processor.

A number of PCI-E 4.0 lanes will be available on the chipset's side, which will be connected to the CPU by four PCI-E 4.0 lanes. These will be used for NVME ports, LAN, Wi-Fi modules, and other peripherals, as well as support for 10Gbps and 20Gbps USB 3.2, USB2 compatibility, and numerous SATA ports.

As a result, aside from support for DDR5 and USB4, there will be no significant changes in the I / O when compared to AM5. It will be interesting to observe when it transitions to PCI-E 5.0, which may not occur until the Ryzen 8000 or 9000 series processors are used in conjunction with the 700 or 800 Series motherboards.