If you are eyeing AMD’s next processor generation, “Raphael”, you need to get accustomed to the thought of ?? getting to invest lots of money around the primary memory. AMD allegedly doesn’t intend to use DDR4 memory because of its next desktop processor generation Ryzen 7000, also known as Raphael: Mainboards using the X670 and B650 chipsets for that new AM5 platform must only appear with DDR5 slots.
AMD’s mind of client business, David McAfee, hinted only at the CES 2022 technology fair. He noted in an interview with Tom’s Hardware that the development of the AM5 platform also depends upon DDR5 memory prices and RAM availability. Now Tom’s Hardware states have discovered that there will indeed not be any X670 and B650 motherboards with DDR4 slots from logistics sources. Another symbol of it was supplied by the hack around the mainboard manufacturer Gigabyte this past year, that AMD’s AM5 documentation, amongst other things, grew to become public. The word “DDR4” doesn’t even appear on the 254 pages, but “DDR5” seems on 76 occasions.
DDR5 modules still expensive
DDR5 memory is presently still considerably more costly than DDR4: a DDR5 package with a capacity of 32 GB costs a minimum of 200 euros – and it is then not particularly fast with DDR5-4800 clock frequencies CL40 timings. 32 GB of DDR4 RAM can be obtained for 105 euros. Overclocked kits, for instance, with DDR4-3200 clock frequencies and tighter CL16 timings, can be found for 115 euros. DDR5 modules tend to be more costly mainly due to the more complicated structure. Unlike DDR4, each DDR5 module uses its power management circuit (PMIC) for current management. These chips usually only cost you a couple of cents to a couple of euros but will be in short supply since 2020 (keyword: nick shortage) and are therefore more costly.
The memory controllers in AMD’s Ryzen 7000 processors are rumoured so that you can handle DDR4 RAM, but AMD didn’t intend to do things if this was designing the AM5 platform. The next bet is the transition to a different memory generation since factors like the global nick shortage can’t be predicted years before the market launch. Meanwhile, short-term certification for DDR4 RAM is hardly possible. DDR4 support could probably follow with cost-enhanced but comparatively poorly outfitted A620 mainboards.