AMD, the famous American manufacturer of processors, has just unveiled its plans for the next few years. On the program, new Zen processors 2, 3 and 5.
It is a long-term work that AMD is doing to concretize the successors of its Zen architecture.

A work around Zen microarchitecture

The development of the succession of Zen microarchitecture began last year at AMD. The manufacturer was then thinking about versions 2, 3 and 5 - the number 4 seems to have been deliberately ignored by superstition.

This year, AMD will begin sampling its next Zen 2 core in 7nm. These will be enterprise server processors based on the upcoming microarchitecture, which should take a long time to develop - much more than mainstream processors.
This development seems to have progressed well and should be able to bring a commercialization of a new Ryzen 7nm 300 series processor (based on Zen 2 architecture) and a 500 series motherboard in the first half of 2019.

New versions in 2020

On its roadmap, AMD also plans the development of new processor units in 2020. It will be version 3 of Zen architecture in 7nm + as well as version 5 in 3nm.
Zen 3 will be based on an improved version of Zen architecture 2. A succession that will remain on a 7nm engraving, christened for the occasion 7nm +.
As for Zen 5, it will be based on a 3nm engraving. It's a feat in the field, that even the biggest competitors of the manufacturer like Intel have trouble following.

If this roadmap is official, a rumor also circulates on the subject. It looks like AMD plans to increase the number of cores, from currently 8 cores to a maximum of 12 to 16 cores on the AM4 socket. It is also a revolution that few manufacturers can follow.

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