AMD updates numbering system for Ryzen mobile processors ahead of Mendocino APU launch

AMD updates numbering system for Ryzen mobile processors ahead of Mendocino APU launch

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 line. And while we’re still a bit far from the first Zen 4 moving parts, more immediate on AMD’s roadmap is their Zen 2-based Mendocino SoC, which is aimed at consumer laptops. The Mendocino APUs are expected to launch next quarter, and to prepare for that launch, AMD is today updating its mobile processor numbering scheme to accommodate these future products.

The short version of things is that while the new numbering system is quite similar to AMD’s previous system (e.g. Ryzen Mobile 6000), the company now dedicates a number to represent the version of the Zen architecture being used. While AMD is set to have Zen 2 (Mendocino), Zen 3 (Rembrandt) and possibly Zen 4 (Phoenix) mobile APUs all hitting the market at the same time, AMD has decided they need to better disclose the architecture used underneath – a “necessary evil”, as former AnandTech CPU editor Dr. several versions of Zen architecture.

So without further ado, here’s your set-top box for AMD’s Ryzen Mobile product line for the next few years.

AMD Ryzen Mobile Product Number Decoder (2023-2025)
AnandTech Means 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 = upper segment
Suffix TDP/form factor HX = 55W+
HS = 35W
U = 15 – 28W
e = 9W
C = Chromebook (15 – 28W)

Starting from the top, the the first digit is now explicitly a model year digit. AMD picks up where it left off here with the current Ryzen Mobile 6000 series products and starts with the 7000 series for model year 2023 products. 2024 model year and 2025 model year respectively.

“Model year” is the operational term here, as Mendocino APUs would be the first products to use the new numbering system, even though they launch in late 2022. So similar to automobiles, AMD is giving itself some leeway operationally. maneuver to carry forward year-end revenue to the next calendar year.

In line with AMD’s APU mix, this also gives AMD more room to recycle/refresh existing parts for future model years by incrementing the model year number. Granted, AMD is already doing this with components like the Renoir/Zen 2-based Ryzen Mobile 5000 chips, which has led to some of the confusion AMD seeks to resolve with its new numbering system. Somehow, OEMs want to have parts with “current” model year numbers, and since AMD isn’t going to do top-to-bottom revisions to its mobile APU architecture every calendar year, it’s the compromise to allow AMD to update its hardware based on development and market conditions.

During this time the the second digit remains the chip market segment, indicating whether it is a Ryzen 3, 5, 7 or 9 part (or an Athlon Silver/Gold part). AMD has used this number quite loosely over the years, incrementing it widely for higher segment parts, and this practice is expected to continue with the new numbering system. This means that 9 and 7 will be Ryzen 9 and 7 respectively, while 8 will be split between 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 be reserved for low-end Athlon Silver and Gold parts, respectively.

According to this, the third digit is the Zen architecture version. It ends up being very simple, with each version of the Zen architecture taking the corresponding value, for example Zen 2 is a 2 and Zen 3 is a 3.

As mentioned earlier, this is the largest and most significant change to AMD’s numbering scheme. With the upcoming launch of the Zen 2-based Mendocino APUs, it is in AMD’s interest to ensure that they clearly disclose the processor architecture used, so that consumers are not fooled into thinking they get a chip based on a new architecture like Zen 4. With AMD seemingly set to update only a fraction of its chip lineup each calendar year – and the model year figure being essentially worthless in determining the architecture used – this is how AMD will be able to have a single product stack made up of different chip architectures while making the necessary disclosures to avoid misleading consumers.

By rounding the figures, the the fourth digit is the minor feature/performance isolation segment for a chip. Even with 9 major market/performance segments, AMD often offers a few chips in each segment, and not always with identical features. So whenever AMD’s product stack gets deep enough that this becomes necessary, the fourth digit will be used as the final element to indicate whether it is the top or bottom chip in that market segment.

Notably, there are currently only two values ​​provided for the fourth digit: 0 and 5. 0 will be the lowest part of the segment, and 5 the fastest. And, if AMD is to introduce an even finer degree of differentiation, there’s plenty of room for additional values.

AMD’s prime example, at the moment, uses this number to differentiate between the Barcelo (Zen3 + Vega) and Rembrandt (Zen3 + RDNA2) APUs, both of which will be sold as part of the Ryzen Mobile 7000 series. both are based on the Zen 3 CPU architecture, the architecture alone cannot be used to differentiate the chips. And rather than playing games with the major segment trying 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 do this with Zen 4 Ryzen Mobile parts, as both Phoenix and Dragon Range will be Zen 4 parts with different functionality. In this case, the high-end Dragon Range parts will use the number xxx5. This also means that between the third and fourth digits, each architecture/platform will have its own two-digit combination, either 7×20 for Mendocino, 7×35 for Rembrandt, or 7×40 for Phoenix.

To finish, 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 high-end 55W+ parts, HS the 35W parts, U the 15-28W parts, and the tiny e their 9W parts for fanless laptops. AMD drops the H suffix, however; while the company isn’t talking about future products, this is a less than subtle hint that the 45W part numbers are going away in favor of maintaining clear groupings of 55W and 35W parts.

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

All in all, it’s pretty easy 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 looking like the Ryzen 7 7735HS. On top of that, a Mendocino chip would end up looking like the Ryzen 3 7320. And further down the line, when AMD launches its Zen 4 mobile APUs, you’ll have something like the Ryzen 9 7945HX (for sale alongside the slightly Ryzen 9 7845HX slower and the less powerful Ryzen 9 7940HS). And taken to an absurd degree, this system gives AMD the ability to do some particularly crazy combinations, like resurrecting the Zen+-based Picasso in 2025 for the Ryzen 9 9915HX.

From a pragmatic standpoint, 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 gradually increases in value with a chip’s performance, AMD should be better able to communicate what’s under the hood and how their chips are supposed to compare to each other. .

Pictured above: A Ryzen Mobile decoder wheel distributed by AMD to the press. It’s less intimidating than it looks

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