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AMD's Zen 4 microarchitecture is currently under development

AMD's Zen 4 microarchitecture is currently in development. (Source: Anandtech)
AMD's Zen 4 microarchitecture is currently in development. (Source: Anandtech)
AMD hinted during its recently concluded Next Horizon Event that the Zen 4 microarchitecture is in the design phase. No further details were revealed but chances are that it will be using an advanced node for this architecture that could debut in 2021 or later.
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At its Next Horizon Event earlier this week, AMD officially said that it had started working on the Zen 4 microarchitecture. It did not disclose anything else so we can only speculate as to what it could be. 

The present Zen 2 microarchitecture is already being sampled and CPUs made with Zen 2 such as the EPYC Rome are 7 nm parts fabricated using TSMC's first generation N7 technology. Zen 2's successor, Zen 3, will continue to be a 7 nm part and will be made using TSMC's N7+ technology that will employ EUV lithography. So that leaves us wondering as to what could be Zen 4's manufacturing process. We can speculate 5 nm, but that would be just a wild guess at this point.

The Zen 3 parts are expected to start shipping in 2020, which means we will be seeing AMD sticking with 7 nm for at least the next two years. Zen 4 could start shipping in 2021 or even later. What would be the likely benefits of Zen 4 you ask? The same as with any processor generation — higher performance per watt than previous generations. 

It remains to be seen what AMD has in store for Zen 3 and beyond. We are currently in the Zen+ stage, which is an optimization phase in AMD's inflection-optimization cycle. Thus, upcoming inflection phases are Zen 2 and Zen 4, with Zen 3 more likely to be a Zen 2+ than a major architecture revision.

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Vaidyanathan Subramaniam
Vaidyanathan Subramaniam - Managing Editor - 1309 articles published on Notebookcheck since 2012
Though a cell and molecular biologist by training, I have been drawn towards computers from a very young age ever since I got my first PC in 1998. My passion for technology grew quite exponentially with the times, and it has been an incredible experience from being a much solicited source for tech advice and troubleshooting among family and friends to joining Notebookcheck in 2017 as a professional tech journalist. Now, I am a Lead Editor at Notebookcheck covering news and reviews encompassing a wide gamut of the technology landscape for Indian and global audiences. When I am not hunting for the next big story or taking complex measurements for reviews, you can find me unwinding to a nice read, listening to some soulful music, or trying out a new game.
contact me via: @Geeky_Vaidy
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2018 11 > AMD's Zen 4 microarchitecture is currently under development
Vaidyanathan Subramaniam, 2018-11- 8 (Update: 2018-11- 8)