While all eyes are on the impending launch of AMD’s new Ryzen 7000 desktop processors, the chipmaker also has its wheels in motion for the future of its mobile product lineup. And while we’re still quite a bit away from the first Zen 4 mobile parts, more immediate on AMD’s roadmap is their Zen 2-based Mendocino SoC, which is aimed at mainstream laptops. Mendocino APUs are set to launch next quarter, and to prepare for that launch, AMD today is updating their mobile processor numbering scheme to accommodate those future products.

The short version of matters is that while the new numbering system is quite similar to AMD’s previous system (e.g. Ryzen Mobile 6000), the company is now dedicating a digit to represent the version of the Zen architecture used. With AMD set to have Zen 2 (Mendocino), Zen 3 (Rembrandt), and eventually Zen 4 (Phoenix) mobile APUs all on the market at the same time, AMD has decided that they need to better disclose the architecture used underneath – a “necessary evil”, as former AnandTech CPU editor Dr. Ian Cutress put it, to avoid any improprieties (perceived or otherwise) that AMD is misleading customers by offering multiple versions of the Zen architecture.

So without further ado, here is your decoder for AMD’s Ryzen Mobile product line for the next few years.

AMD Ryzen Mobile Product Number Decoder (2023- 2025)
AnandTech Signifies Values
First Digit Model Year 7 = 2023
8 = 2024
9 = 2025
Second Digit Major Market Segment 1 = Athlon Silver
2 = Athlon Gold
3 & 4 = Ryzen 3
5 & 6 = Ryzen 5
7 = Ryzen 7
8 = Ryzen 7 or  Ryzen 9
9 = Ryzen 9
Third Digit CPU Architecture 1 = Zen/Zen+
2 = Zen 2
3 = Zen 3
4 = Zen 4
5 = Zen 5
Fourth Digit Feature Isolation /
Minor Performance Segment
0 = Lower Segment
5 = Higher Segment
Suffix TDP/Form Factor HX = 55W+
HS = 35W
U = 15 - 28W
e = 9W
C = Chromebook (15 - 28W)

Starting from the top, the first digit is now explicitly a model year digit. AMD is picking up from where they left off here with the current Ryzen Mobile 6000 series products, and starting things with the 7000 series for model year 2023 products. This will, in turn, be incremented to 8 and then 9 for model year 2024 and model year 2025 respectively.

“Model year” is the operative term here, as the Mendocino APUs would be the first products to use the new numbering system, even though they’re launching in the tail end of 2022. So similar to automobiles, AMD is operationally giving themselves some leeway to fold end-of-year products into the following calendar year.

In accordance with AMD’s APU mixing, this also gives AMD further room to recycle/refresh existing parts for future model years by incrementing the model year number. To be sure, AMD is already doing this with parts like the Renoir/Zen 2-based Ryzen Mobile 5000 chips, which in turn has led to some of the confusion AMD is looking to resolve with their new numbering system. One way or another, OEMs want to have parts with “current” model year numbers, and as AMD isn’t going to be doing top-to-bottom overhauls of its mobile APU architecture every single calendar year, this is the compromise to allow AMD to refresh their hardware as development and market conditions allow.

Meanwhile the second digit is remaining as the market segment of the chip, indicating if it’s a Ryzen 3, 5, 7, or 9 part (or an Athlon Silver/Gold part). AMD has used this digit pretty loosely over the years, broadly incrementing it for higher-segment parts, and that practice is set to continue under the new numbering system. That means 9 and 7 will be Ryzen 9 and 7 respectively, while 8 will be split between both Ryzen 9 and Ryzen 7. Meanwhile Ryzen 5 will use 5 and 6, and Ryzen 3 will use 3 and 4. Finally, 1 and 2 will be reserved for low-end Athlon Silver and Gold parts, respectively.

Following that, the third digit is the Zen architecture version. This ends up being very straightforward, with each version of the Zen architecture taking the matching value, e.g. Zen 2 is a 2 and Zen 3 is a 3.

As stated earlier, this is the biggest and most important change to AMD’s numbering scheme. With the upcoming launch of the Zen 2-based Mendocino APUs, it’s in AMD’s best interests to make sure they are clearly disclosing the CPU architecture being used, so that consumers are not being duped by thinking they’re getting a chip based on a newer architecture like Zen 4. With AMD seemingly set to only update a fraction of its chip lineup each calendar year – and the model year digit essentially being worthless for determining the architecture used – this is how AMD will be able to have a single product stack comprised of different chip architectures while still making the necessary disclosures to avoid misleading consumers.

Rounding out the digits, the fourth digit is the feature isolation/minor performance segment for a chip. Even with 9 major market/peformance segments, AMD often offers a couple of chips in each segment, and not always with identical features. So, whenever AMD's product stack becomes deep enough that it should become necessary, the fourth digit will be used as the final element to indicate whether this is the higher or lower chip within that market segment.

Notably, there are currently only two values planned for the fourth digit: 0 and 5. 0 will be the lower segment part, and 5 the faster. And, should AMD need to introduce an even finer degree of differentiation, then there is plenty of room for additional values.

AMD's primary example, for the moment, is using this digit to differentiate between Barcelo (Zen3 + Vega) and Rembrandt (Zen3 + RDNA2) APUs, both of which will be sold as part of the Ryzen Mobile 7000 series. Since both are based on the Zen 3 CPU architecture, architecture alone cannot be used to differentiate the chips. And rather than playing games with the major segment to try to separate the two chips (e.g. making Rembrandt only Ryzen 7 and Barcelo only Ryzen 5), AMD instead uses the fourth digit to mark which chip is which.

Note that AMD will also be doing this with Zen 4 Ryzen Mobile parts, as Phoenix and Dragon Range will both be Zen 4 parts with different features. In this case, the high-end Dragon Range parts will take up the xxx5 digit. This also means that between the third and fourth digits, every architecture/platform will have its own two digit combination, be is 7x20 for Mendocino, 7x35 for Rembrandt, or 7x40 for Phoenix.

Finally, the suffix will continue to indicate the TDP of the chip. This is unchanged from AMD’s current use of suffixes. So HX will be the top-end 55W+ parts, HS the 35W parts, U the 15-28W parts, and lower-case e their 9W parts meant for fanless laptops. AMD is dropping the H suffix, however; while the company doesn’t talk about future products, this is a less-than-subtle hint that the 45W SKUs are going away in favor of maintaining clear groupings of 55W and 35W parts.

Meanwhile SKUs specifically aimed for Chromebooks will also retain their C suffix to differentiate them from AMD’s normal chips designed for full-fledged laptops. For the moment, all of AMD’s Chromebook chips are 15-28W.

Taken altogether, it’s easy enough to see/project how future AMD chips will be numbered. A rebadged version of the Rembrandt-based Ryzen 7 6800HS, for example, would end up being something like the Ryzen 7 7735HS. Joining that, a Mendocino chip would end up being along the lines of the Ryzen 3 7320. And farther down the line when AMD launches their Zen 4 mobile APUs, you’ll have something like the Ryzen 9 7945HX (to be sold alongside the slightly slower Ryzen 9 7845HX and the lower power Ryzen 9 7940HS). And taken to an absurd degree, this system does give AMD room to do some particularly crazy combinations, such as resurrecting the Zen+ based Picasso in 2025 for the Ryzen 9 9915HX.

Pragmatically speaking, if you’re not a regular AnandTech reader you’re unlikely to remember the full scope of AMD’s mobile chip numbering system – and even AMD knows as much. But by using a consistent numbering system that progressively increases in value with the performance of a chip, AMD should be better able to communicate what’s under the hood and how their chips are meant to compare to each other.

Pictured Above: A Ryzen Mobile decoder wheel AMD distributed to the press. It's less daunting than it looks

Source: AMD

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  • quorm - Wednesday, September 7, 2022 - link

    Well at least the numbers mean something, I guess.
  • Zepp - Wednesday, September 7, 2022 - link

    their inconsistency with mobile/desktop numerology has bugged me since Raven Ridge. Why didn't they call Raven Ridge 1400G?, why were 4000 and 6000 series APU's only?
  • AshlayW - Wednesday, September 7, 2022 - link

    Ryzen mobile (zen1, first gen, Raven Ridge) launched around the same time or only slightly before the Ryzen 2000 (zen1+, second gen, Pinnacle Ridge) chipsets. If they launched it at 1000 series, they would be releasing products that customers would associate with being old (as in the desktop 1000 series). Customers, for example, looking at AMD Ryzen 2000 desktop might think, I want a laptop with "AMD Ryzen" but I want the latest, so surely I would be looking for a Ryzen 2000 mobile.

    TLDR; the out-of-sync timing of AMD's mobile/desktop chipset release cadences is why the naming was a bit messed up.
  • Hul8 - Wednesday, September 7, 2022 - link

    Furthermore, the 4000 and 6000 happened precisely because AMD wanted to avoid the backlash that having mobile and desktop being out-of-sync in terms of technology despite releasing around the same time had created up until that point.

    This allowed AMD to appease the biggest customers in the consumer space - the big OEMs that sell vastly more CPUs than what is used in DIY markets - all the while also not misleading the DIYers.

    But now people are complaining that the numbering isn't simple. It's like the classical pick 2 out of 3 situation, options being:
    1) simple numbering,
    2) informative numbering and
    3) OEM-sellable numbering.
  • meacupla - Wednesday, September 7, 2022 - link

    I think AMD could have done better.
    I particularly don't like the suffix. I don't see why they use "HS" when it should just be "M" for "Medium" or "Mobile". Then they can keep "H" for "High power".

    AMD also missed an opportunity to just make the Model year reflect what year the CPU was manufactured, and very easily at that.
    They could have gone straight to 2025='25

    The Major market segment, also has some issues in the lower end.
    Ryzen 3 has models with 2 and 4 cores, but the new naming convention doesn't really reflect the large gap in performance these two will have.

    And then, although it hasn't happened yet, what if there was a 12 core Ryzen 9 mobile CPU? What number is it supposed to use under the new numbering scheme?
  • Hul8 - Thursday, September 8, 2022 - link

    "M" has been used on the GPU side from time to time - most recently with the RX 6000M series. Especially now with AMD releasing 7000 series on both CPUs and GPUs at the same time, an "M" suffix on mobile CPU would generate massive confusion.

    "H" has long been used for ~45W mobile parts. That *used to be* the high power mobile CPU segment and people know what to expect from it so I think it's better to have H fixed at 45W.

    Intel uses "HX" for higher power parts these days. I think it's to the benefit of consumers when companies consistently use the same suffix to convey the same meaning.

    The HS also undoubtedly works for AMD marketing in conveying that they're H parts binned for efficiency; they are supposed to achieve almost H levels of performance at a lower power level.
  • Hul8 - Thursday, September 8, 2022 - link

    People are used to the most significant digit standing for generation/year. If you were to use two digits for a year, you'd end up getting consecutive generations 23xx, 24xx, 25xx. To the uninitiated those would seem like lower end parts of a "2000" generation.

    Companies need/want to refresh their consumer-facing product numering schemes periodically.

    Even if they don't run out of range on the numbers, the scheme will start seeming stale and old. This will be excerbated by a partically underwhelming product generation or two, or may be prompted by a shift in technology where you want to adopt the latest moniker or invent one ("HD", "RTX").

    Future-proofing the numbering by using two digits for year is wasteful; the digit would be better used for anything else, including zero padding since it makes the number easier to remember.
  • Hul8 - Thursday, September 8, 2022 - link

    Do you *know* that future Ryzen 3's will have both 2 and 4 core models? The Athlon Gold x2xx and Athlon Silver x1xx seem to me like they would be poised to take all 1 - 2 core variants.

    Especially since AMD never seems to produce any (or many units of) Ryzen 3 on the latest architectures these days. They have such good yields and the Ryzen 5 and up models are in such high demand that there is no need to artificially cut any down to R3s. So for Ryzen 3 think Mendocino (budget Zen 2 mobile CPU) with 4 cores, or later Zen 3/+ or Zen 4 low core count respins in a similar fashion.
  • Hul8 - Thursday, September 8, 2022 - link

    Traditionally the product segmentation has been different between different power envelopes or use cases: Ryzen 9's on mobile have had 8 cores while on desktop they're 12 or 16.

    I hope that now that AMD is bringing 16 cores to mobile (the desktop replacement Dragon Range CPUs, which are repackaged and undervolted desktop CPUs) they reserve the Ryzen 9 name for 12+ core models even on mobile.

    Then it could be:
    - Ryzen 9 7940HX = 16 cores
    - Ryzen 9 7840HX = 12 cores

    Then there is the option of separating the xxx0 and xxx5 variants either by the power and thermal design of the laptop (xxx0 up to a certain wattage, and xxx5 beyond that), or possibly introducing 3D V-Cache models later as xxx5.
  • Zepp - Thursday, September 8, 2022 - link

    that was never a good excuse

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