It looks like we are getting more closer to the launch of AMD's Zen 3 CPUs as microcode for the upcoming lineup has been added to the Linux Kernel, as spotted by Komachi. The AMD Zen 3 line of processors are aimed to hit in the coming quarters and it looks like they are going to be a bigger upgrade than we have anticipated as many leaks and official representatives have stated.

AMD Zen 3 CPU Architecture Microcode Added To Linux Kernel As We Get Closer To Launch of Next-Gen Ryzen, EPYC Families

The latest code adds EDAC (Error Detection and Correction) support for AMD's Family 19h which refers to the Zen 3 architecture while the Zen 2 architecture was referred to as the Family 17h. It also states that the existing Family 17h functions can be used for Family 19h, while also allowing family 19h to automatically load the module. The full kernel code can be seen here and here. The timing of this code's appearance is particularly interesting as AMD hasn't yet officially announced any new detail at any major event with CES 2020 being the last where we were expecting to hear more about Zen 3 architecture or the respective products.

[PATCH 4/5] EDAC/amd64: Add family ops for Family 19h Models 00h-0Fh https://t.co/wveHQTqrqU

>Add family ops to support AMD Family 19h systems. Existing Family 17h

functions can be used.

Also, add Family 19h to the list of families to automatically load the

module.

— 比屋定さんの戯れ言@Komachi (@KOMACHI_ENSAKA) January 18, 2020

However, this means that in the upcoming months, AMD is definitely bringing us more news as also stated by AMD's CEO, Dr. Lisa Su, in the 'The Bring Up' interview where she states that Zen 3 architecture is doing really well, they are excited about it and that she looks forward to talking more about it later in 2020.

Now there is a plentiful of events where AMD can announce and give us more information on Zen 3 with GDC closing up in March, Computex and E3 in June. However, major tech companies may withhold their Computex conferences if the Coronavirus outbreak doesn't get contained which means the announcement would have to move to a different venue and in the case, E3 sounds like the best bet.

AMD has so far confirmed themselves that Zen 3 brings a brand new CPU architecture which helps deliver significant IPC gains, faster clocks and even higher core counts than before. Based on brand new TSMC's 7nm+ process node which utilizes EUV technology, the AMD Zen 3 processors would deliver higher efficiency and deliver more compute output with similar or less energy consumption.

When asked about what kind of performance gain Milan's CPU core microarchitecture, which is known as Zen 3, will deliver relative to the Zen 2 microarchitecture that Rome relies on in terms of instructions processed per CPU clock cycle (IPC), Norrod observed that -- unlike Zen 2, which was more of an evolution of the Zen microarchitecture that powers first-gen Epyc CPUs -- Zen 3 will be based on a completely new architecture.

Norrod did qualify his remarks by pointing out that Zen 2 delivered a bigger IPC gain than what's normal for an evolutionary upgrade -- AMD has said it's about 15% on average -- since it implemented some ideas that AMD originally had for Zen but had to leave on the cutting board. However, he also asserted that Zen 3 will deliver performance gains "right in line with what you would expect from an entirely new architecture."

- The Street

Nowaccording to TSMCthemselves, the 7nm+ process node allows an increase of 20% in overall transistor density while increasing power efficiency by 10%. AMD could take full advantage of the process node and we could see a density boost of up to 20% in the Zen 3 architecture while having 10% better power efficiency. Some of the details we know forEPYC Milan CPUsinclude:

7nm+ Zen 3 cores (~64 core / 128 thread)Pin Compatible With SP3 Socket120W-225W TDP SKUsPCIe 4.0 SupportDDR4 Memory SupportLaunch in 2020

AMD CPU Roadmap (2017-2022)