AMD’s Ryzen 4000 “Vermier” CPU Featuring Next-Gen Zen 30 million in widely leaked documents


Official information about AMD’s next-generation Raizen 4000 CPU family based on the Zen 3 core architecture has been unveiled. The information is part of confidential AMD documents that were shared by us CyberCatPunk.

AMD’s Ryzen 4000 “Vermier” CPU Featuring Next-Gen Zen 30 million in widely leaked documents

Documents repeating some bits and pieces provide us with some new information that we have already known for a while. For starters, the AMD Wormy desktop CPU family is known as the AMD Family 19H Model 21HB0. According to the document, the AMD Zen3-based Raizen 4000 AM4 CPU family, codenamed Vermeer, is designed for use in high-performance desktop platforms and consists of two CCDs (Core / Cache Complex DES) and a single EOD (I / I) ). Hey die).

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Unlike the previous generation design where each CCD consisted of two CCXs (core complexes), the Zen3 CCD would include a single CCX with 8 cores that could run in single-thread mode (1T) or two-thread CCX. Mode (2T) up to 16 threads. Since the chip has a maximum of two CCDs, the core and thread count will be maximum at 16 cores and 32 threads which is similar to the current flagship AM4 desktop CPU, the Ryzen 9 3950X.

Each Zen 3 core will feature 512 KB2 L2 cache for a total of 4 MB of L2 cache per CCD. On a dual CCD CPU the equivalent of L2 cache should be 8 MB. Along with the L2 cache, each CCD will also include a shared L3 cache of 32 MB. For Zen2, the L3 cache was split between the two CCXs, each CCX having its own separate (up to) 16 MB cache. The cache size remains the same per CCD but now all cores can share a large number of L3 caches.

Core Complex Dye (CCD):

CCX includes:

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  • Up to 8 cores where each core can run in single-thread mode (1T) or two-thread SMT mode (2T)
    For a maximum of 16 threads per complex
  • 512KB of L2 per core for 4MB L2 of CCD.
  • All cores within the campus have a stake of up to 323 L3

Enhancing AMD’s Ryzen 4000 ‘Vermier “desktop CPU with Zen 3 cores, will offer slightly better scalable data fabric, supporting up to 512 GB per DRAM channel or 1 TB of ECC DRAM. For memory interfaces, the Ryzen 4000 Desktop CPUs. The native DDR4-3200 will maintain speed. There will be 2 integrated memory controllers on the CPU, each DRAM channel will support a total of 2 DIMMs per channel. The following details for the IOD / I and PCH feature are set for IOD.:

Scalable Data Fabric. It provides data paths that connect the compute complex, I / O interfaces, and memory interfaces to each other.

  • Handles request, response and data traffic
  • Checks traffic to facilitate cohabitation, supports up to 512GB per DRAM channel
  • Handles interrupt request routing (APIC)
  • Scalable Control Fabric. It provides a data path that provides configuration access paths to all blocks
  • Handles configuration requests, responses and data traffic
  • GMI2: Two special data fabric ports for connection to CCDs.

Memory interface

  • 2 Unified Memory Controllers (UMC), each supporting a DRAM channel
  • 2 DDR4 PHYs. Each PHY supports:
  • 64-bit data plus ECC
  • 1 PHAM per PHAM channel
  • 2 DIMMs per channel
  • DDR4 transfer rates from 1333MT / s to 3200MT / s
  • Support UDIMM

PSP and SMU

  • MP0 (PSP) and MP1 (SMU) microcontrollers
  • This document refers to AMD Secure Processor Technology as Platform Security Processor (PSP).
  • Thermal monitoring
  • Fuses
  • Clock control

NBIO

  • PCI device ID information uses vendor ID 1022h for all devices (see Table 18 [PCI Device ID
    Assignments.].
  • 2 SYSHUBs
  • 1 IOHUB with IOMMU v2.x
  • Two 8×16 PCIe controllers supporting Gen1 / Gen2 / Gen3 / Gen4. Note that SATA Express is supported by combining one x2 PCIe® port and two SATA ports on the same 2 lanes.
  • 24 total lanes combo PHY, UPI muxing

Fusion Controller Hub (FCH or Southbridge (SB))

  • ACPI
  • Clangen / CGPLL for clank generation
  • GPIO (different numbers depending on muxing)
  • LPC
  • Real Time Clock (RTC)
  • SMBus
  • SPI / Espi
  • Azalia
  • high definition Audio
  • Also provides legacy SATA support for SATA, up to 2 lanes of SATA Gen1 / Gen2 / Gen3
  • Ports. Shared with PCIe
  • SGPIO
  • USB3.1 Gen 2
  • Includes 4 ports, support for legacy USB speeds

We got to hear some new features for the Ryzen 4000 desktop CPU a few days ago, which we covered here. We have seen engineering samples running at speeds up to 4.9 GHz which is really impressive. AMD is expected to unveil its next-generation AM4 CPU lineup based on the Zen 3 core architecture on October 8, as confirmed in the official announcement.

Here’s everything you know about the Ryzen 4000 ‘Vermier’ desktop CPU based on AMD’s Zen3

The AMD Zen3 architecture is said to be the largest CPU design since the original Zen. It is a chip that has been completely redesigned from the group and focuses on three key features including significant IPC benefits, faster clocks and higher efficiency.

AMD has so far confirmed itself that the Zen 3 brings a completely new CPU architecture, with significant IPC benefits, faster clocks and even higher core counts than before. Some rumors have pointed to a major cash redesign, along with a 17% increase in IPC and a 50% increase in Zen3’s floating-point operations.

We did see a major change in cache design in the EPYC presentation, which revealed that Zen3 would offer a unified cache design that should essentially double the cache that each Zen3 core uses compared to Zen2 Can.

The CPU is expected to receive up to 200–300 MHz clock boost, bringing the Zen3 based Raizen processor closer to the 10th generation Intel Core offerings. With the massive increase in IPC and general changes in architecture, performance will be much faster than existing Ryzen 3000 processors, which already took a big leap forward on Ryzen 2000 and Ryzen 1000 processors, while the evolutionary product as revolutionary , AMD recently unveiled.

It is worth noting that we will see the return of the chiplet architecture and AMD will retain support over the existing AM4 socket. The AM4 socket was to run until 2020, so it is likely that AMD will be the last family to use the Zen3-based Raizen 4000 CPU socket before moving to the AM5, which will be designed around future technologies such as DDR5 and USB 4.0 . AMD’s X670 chipset was also hinted to come by the end of this year and will have PCIe Gen 4.0 support and enhanced I / O in the form of more M.2, SATA and USB 3.2 ports.

It was recently confirmed by AMD that the Ryzen 4000 desktop CPU would only be supported by 400 and 500-series chipsets, while dropping 300-series support.

AMD recently confirmed that the Zen 3-based Ryzen 4000 desktop processor would mark the continuation of its high-performance journey. The Zen 3 architecture will be available for the first time on the consumer desktop platform with the launch of the Vermeer family of CPUs that will replace the 3G General Rigen 3000 Matis family of CPUs.

So, what’s next for AMD in the PC space? Well, I can’t share too much, but I can say that our high-performance journey continues with our first “Zen 3” client processor to launch later this year. I would say that you haven’t seen the best of us yet …

AMD Executive Vice President of Computing and Graphics – Rick Bergman

So far, the competitive advantage AMD has gained with its Zen 2-based Rizen 3000 is much larger than what Intel has on their sleeves for this year, and the Zen 3-based Rizen 4000 CPU envelopes that more. Are also going to push forward.

AMD CPU Roadmap (2018-2020)

Ryzen Family Risen 1000 series Raizen 2000 Series Risen 3000 series Ryzen 4000 Series Ryzen 5000 Series Ryzen 6000 Series
Architecture Zen (1) Zen (1) / Zen + Zen (2) / Zen + Zen (3) / Zen 2 Zen (3) + / Zen 3? Zen (4) / Zen 3?
Process node 14nm 14nm / 12nm 7nm 7nm + / 7nm 7nm + / 7nm 5nm / 7nm +
Server EPYC ‘Naples’ EPYC ‘Naples’ EPYC ‘Rome’ EPYC ‘Milan’ EPYC ‘Milan’ EPYC ‘Genoa’
Max Server Core / Threads 32/64 32/64 64/128 64/128 TBD TBD
High end desktop Ryzen Threadiper 1000 Series (White Haven) Raizen Threadiper 2000 Series (Koflex) Ryzen Threadiper 3000 Series (Castle Peak) Rigen Threadiper 4000 Series (Genesis Shikhar) Ryzen Threadiper 5000 Series Raijen Threadiper 6000 Series
Max HEDT Core / Threads 16/32 32/64 64/128 64/128? TBD TBD
Mainstream desktop Rigen 1000 Series (Summit Ridge) Raizen 2000 Series (Summit Ridge) Risen 3000 Series (Matisse) Raizen 4000 Series (Vermier) Ryzen 5000 Series (Warhol) Ryzen 6000 Series (Rafael)
Max Mainstream Core / Threads 8/16 8/16 16/32 16/32 TBD TBD
Budget apu N / A Raizen 2000 Series (Raven Ridge) Risen 3000 Series (Picasso Zen +) Raizen 4000 Series (Renoir Zen 2) Risen 5000 Series (Cezanne Zen 3) Risen 5000 Series (Rembrandt Zen 3)
year 2017 2018 2019 2020/2021 2020/2021 2022

What do you want to see in AMD’s next-gen desktop CPU?

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