5 years of Ryzen: Zen 3D for AM4, AM5 with DDR5 and PCIe 5, compatible coolers

If we take into account the technological presentation (and not just the lifting of the sample encapsulated under IHS and the like), AMD introduced or announced Zen in the second half of 2016. It was originally expected to be available before the end of the year, eventually the release moved to the beginning of 2017. Zen as such, however, it was introduced in the second half of 2016, so AMD decided that there was a reason to commemorate this event and on that occasion to tap into future plans.

Zen 3D

Robert Hallock confirmed the preparations Zen 3D / Zen 3 with V-cache, which increases gaming performance. Hallock was more shared this time and specified that the announced 15% is purely the result of the V-cache itself, in other words, this value was achieved without interfering with the architecture and without increasing the clock frequencies. From these words, it can no longer be deduced unequivocally whether it only comments on the properties of the sample on which the 15% was achieved or indicates that the final product will run at the same rates as the current models. He further specified that this product will be designed for the existing AM4 socket and released in early 2022.

APU Rembrandt and laptops

At the beginning of 2022, AMD is also preparing new notebook processors. The AMD plan corresponds to the expected release of the APU Rembrandt (Zen 3+, RDNA 2, 6nm process). In general, in relation to mobile products, Hallock described that further energy savings will be achieved through a combination of different technologies. One of them will be the introduction of a wider range of algorithms for power management. Currently, there is one algorithm that is used whether the game is running on the CPU, the user is writing text in Word or doing something else. In the future, there should be more algorithms that better reflect the needs of each scenario, and the most appropriate algorithms will be selected according to them.

Another piece of the puzzle is to be a wider range of power states, which will reflect the finer granularity of the SoC parts, which the power saving modes can independently regulate or switch off. This time it will no longer be just about more sophisticated power management as such, but the individual SoC parts (parts of processor cores, parts of integrated chipset, parts of GPU) will be designed so that they can be switched off independently of the rest of the chip when not needed. The energy side will be more opposed to the architecture itself.

Another element that will have an impact on the energy side, but not only on it, will be the wider deployment of accelerators, ie single-purpose circuits with low energy requirements. For example, a circuit for noise suppression in teleconferencing or support for various AI algorithms. We are also said to see what AMD users could only quietly envy Intel processor owners Tiger Lake: Eye correction for video calls:

Whether Robert Swan was looking at the screen or keyboard during a video conference, the positions of his eyeballs were shifted to make them look like they were looking you in the eye (more here). This is a very crucial thing, and Intel will lose an essential element of the technological edge that it has enjoyed in the mobile segment so far.


After all, probably the most anticipated processor product of 2022: Platform for Zen 4. Despite some sources denying PCIe 5.0 support on the AM5 platform, Hallock confirmed that it will bring both PCIe 5.0 and DDR5 and maintain cooler compatibility with the current AM4 platform. We can only hope that the implementation of PCIe 5.0 on the AMD platform will be more meaningful than at Intel Alder Lake, where only 16 lines intended primarily for the graphics card slot should be present in the desktop, while 5.0 lines for NVME are no longer available. If the storage fits into the slot, the GPU will lose half of the lines again. Given that with AM5, the number of totally supported PCIe lines is growing, there is some hope that PCIe 5.0 will not be supported on only 16 of them, but let’s not get ahead of our time yet.

Source: Diit.cz by diit.cz.

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