They say that the AM5 platform, which should debut at the end of this year along with the processors of the Ryzen 7000 series under the code name "Raphael", will require exclusively DDR5 memory. Nevertheless, it is not confirmed that the DDR4 memory controller is physically absent in silicon Zen4 Ryzen, because AMD can still allow the DDR4 memory in its entry -level series (A620). However, Tom's Hardware sources are completely sure that AMD does not plan to add DDR4 support for the X670 and B650 motherboards.

This means that, unlike Intel Alder Lake and his successor, Raptor Lake, AMD Raphael will require new users of large monetary investments, since the DDR5 memory price is still more than twice as high as DDR4. Of course, before the Ryzen launch 7000 is a few more months, so by that time a lot can happen, but it is expected that the DDR5 memory will not reach the price parity with DDR4 until at least 2023.

Two chiplet design for motherboards AMD X670 (?):

In addition, Tom's Hardware confirmed some rumors, which stated that some of the AMD of the 600th series may have a design with two chipsets for the main chipset. The use of two chiplets is explained as a simple method of doubling the capabilities of connecting compared to the B650 series, presumably using one chiplet.

This approach will give an AMD advantage by simplifying scaling and flexibility in terms of affordable connection functions. However, for the X670 series, both chiplets made using the TSMC N6 process process are considered identical.

** In the leaked AM5 specification document, the DDR4 specification is not mentioned at all: