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AMD users who are planning to make the jump to red team’s X670 and B650 motherboards should prepare to pay higher premiums due to limited memory options. Tom’s Hardware has received word from multiple sources that these AM5 platforms will only include support for DDR5, a decision that will ensure Ryzen 7000 Series processors are paired with today’s fastest memory but at the cost of annoying enthusiasts who thought they could get away with cheaper, easier-to-find RAM. The publication also confirmed that AM5 motherboards will feature dual chipset dies due to AMD’s transition to a chiplet-based design for its chipsets.

AMD’s AM5 Will Launch With Only DDR5 Support for Ryzen 7000, Dual-Chipset Design (Tom’s Hardware)

Given the long-lived eye-watering pricing we’ve seen for DDR5 memory, AMD’s choice to only support DDR5 could prove to be a disadvantage in the face of Intel’s Raptor Lake, which we have confirmed will continue to support both affordable DDR4 and expensive DDR5 memory, enabling two pricing tiers for Intel platforms.

AMD has already announced that its AM5 socket platforms, which will replace the aging AM4 platform, will support the PCIe 5.0 and DDR5 interfaces as we see with Intel’s Alder Lake — but AMD hasn’t confirmed that DDR4 support isn’t an option. Our sources tell us that the X670 and B650 motherboards have no provisions for DDR4 support, and it isn’t yet clear if Ryzen 7000’s memory controllers even support DDR4. If they do support DDR4, AMD could have plans for lower-tier A-Series motherboards with DDR4 support, but we’re told that doesn’t seem likely.

Both low-end and high-end DDR5 kits seem to be outrageously priced in comparison to their DDR4 counterparts. As noted in a chart shared by the publication, G.Skill’s Trident Z5 RGB DDR5-6400 (F5-6400J3239G16GX2-TZ5RK) 32 GB kit costs $449, while a similarly premium DDR4 option in the form of the Trident Z Neo DDR4-4000 (F4-4000C18D-32GTZN) only costs $169.

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  1. A lot of people will cry about it but the fact is, the decision makes a lot of sense from AMD's perspective. It makes for an easier memory controller design and its easier on motherboard manufacturers. Historically, AMD CPU's tended to have more of an issue with memory bandwidth and latencies than Intel's, so its possible DDR4 might incur a penalty on the 7000 series Ryzens. Now, I don't know that for sure and doubt that's the case, but its possible.
  2. Meh this makes sense to me. So go forth and buy them! I'm a couple generations away from the next socket so my friends in tech go and make it all good for me! ;)
  3. I wouldn't have a problem with that if DDR5 wasn't twice the price of DDR4.
    Just like every other RAM generation, prices will come down /stabilize as production ramps up. It's only so expensive right now because only one very new platform halfway uses it.

    At least until it gets too cheap, and the next Tsunami, or power outage, or interstellar collision occurs and drives it back up for a bit.
  4. Hopefully, by the grace of the gods, AMD along with motherboard manufacturers will have learned from Intel's experience with Z690, Alder Lake, and DDR5.

    With JEDEC still readying DDR5-8000+ standards, it would be nice to see Zen 4 hit at least DDR5-6400 stable.
  5. If we have learned anything about AMD they will release what they have when it is time to launch, and they will tune and update out the ying yang after that until stability and compatibility are awesome. The do this with all of their products. They KNOW they can't keep up with Nvidia or Intel in that regard at launch day but the performance improvement over time for all of their products is a strong + for them.

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