https://wccftech.com/synopsys-creates-new-physical-interface-for-ddr5-and-ddr4-memory/

Synopsys has recently created a new physical interface for it's DDR5 and DDR4 and next gen system-on-chips controllers using 5nm fab technology. This will allow creators of SoCs to acquire added support for both DDR5 and DDR4 memory utilizing the 5nm nodes. Synopsys is currently the leader in this interface, offering data transfer rates up to 6400 MT/s.

Synopsys uses an in-house DesignWare IP that offers developers of chips, whether for SoCs, SSD controllers, or CPUs, to install the physical interface and the controller IP into the 5nm architecture  and ensure that all systems are processing correctly using the verified IP provided that was created by Synopsys.