We have some official data regarding AMD’s next-generation Ryzen 4000 CPU family which is based on the new refined Zen 3 core architecture. The information appears to be a part of some confidential AMD documents that were shared by CyberCatPunk, coming via Tom’s Hardware, and Wccftech.
The Zen 3 CPUs will be officially revealed on October 8, and now some specs have been leaked to give us some insights about the performance of these Zen 3-based CPUs. Likely to be fabbed on the TSMC’s 7nm+ EUV process node, the Zen 3 architecture is said to deliver better performance per watt ratio and efficiency than the previous Zen 2 lineup, which was already a revolutionary architecture from AMD.
As we already know the AMD Vermeer Desktop CPUs based on Zen 3 microarchitecture will be known as the AMD Family 19h Model 21h B0. According to these leaked official documents, Vermeer CPUs will be designed to be used in high-performance desktop platforms, and they are also going to feature up to two CCD’s (Core/Cache Complex Dies) and a single IOD (I/O Die). The document dates back to June 10.
The document appears to be a Processor Programming Reference (PPR) guide for AMD’s Family 19h Model 21h B0, which is Zen 3. For context, Zen+ and Zen 2 belong to Family 17h. As previous rumors have already pointed out, Ryzen 4000-series Vermeer processors will retain the multi-chip module (MCM) approach, the chiplet design. These leaked documents confirm the same as well.
Unlike the previous generation of AMD CPU lineup a single CCD housed two CCX’s (Core Complexes), however, in the case of Zen 3 CCD, a single CCX will feature up to 8 cores running either in a single-thread mode (1T) or a two-thread SMT (simultaneous multithreading) mode (2T), for up to 16 threads per CCX. The chip will have a maximum of two CCDs, so the core and thread count will max out to 16 cores and 32 threads only, same as the existing Ryzen 9 3950X desktop CPU. To reiterate, Zen 3 will have two core complex dies (CCDs) with a one I/O die (IOD) inside of a chip package.
According to the documents, there’s only one CCX inside each CCD. Since there’s only one CCX, all eight CPU cores can now directly access the 32MB of shared L3 cache. The amount of L3 cache remains the same at 32MB per CCD on Zen 3. This new revamped Zen 3 arch design will help lower latency, and also improve the overall instruction per cycle (IPC).
AMD will be introducing an improved scalable data fabric with Zen 3 cores with support up to 512 GB per DRAM channel or up to 1 TB of ECC DRAM. For the memory interface, these Ryzen 4000 Vermeer desktop CPUs will still have DDR4-3200 speeds. However, there will be 2 unified memory controllers on the CPU, and each of them will be supporting one DRAM channel for a total of 2 DIMMs per channel.
We hope Zen 3 architecture to bring at least 15-17% IPC uplift compared to the previous gen Zen 2 CPU lineup. Zen 2 CPUs already featured double the L3 cache over the Zen/Zen+ series chips, and ZEN 3 is going to take things to a whole new level.
AMD’s next-generation Zen 3 architecture aims to alleviate some of the shortcomings of AMD’s existing architecture designs. So, expect some AMD CPUs going as high as 5GHz, to give Intel a stiff competition on the single-core frequency, along with a 50% increase in Zen 3’s floating-point operations & a major cache redesign.
These are all the leaked specs from the documents as compiled by Wccftech.
Core Complex Die (CCD):
- Consists of one CCX
The CCX consists of:
- Up to 8 cores where each core may run in single-thread mode (1T) or two-thread SMT mode (2T)
for a total of up to 16 threads per complex - 512KB of L2 per core for a total of 4MB L2 per CCD
- Up to 32MB of L3 shared across all cores within the complex
Scalable Data Fabric. This provides the data path that connects the compute complexes, the I/O interfaces, and the memory interfaces to each other.
- Handles request, response, and data traffic
- Handles probe traffic to facilitate coherency, supporting up to 512GB per DRAM channel
- Handles interrupt request routing (APIC)
- Scalable Control Fabric. This provides the data path that provides a configuration access path to all blocks
- Handles configuration request, response, and data traffic
- GMI2: Up to two special Data Fabric ports, for connections to the CCDs.
Memory interface
- 2 Unified Memory Controllers (UMC), each supporting one DRAM channel
- 2 DDR4 PHYs. Each PHY supports:
- 64-bit data plus ECC
- 1 DRAM channel per PHY
- 2 DIMMs per channel
- DDR4 transfer rates from 1333MT/s to 3200MT/s
- UDIMM support
PSP and SMU
- MP0 (PSP) and MP1 (SMU) microcontrollers
- This document refers to the AMD Secure Processor technology as Platform Security Processor (PSP).
- Thermal monitoring
- Fuses
- Clock control
NBIO
- PCI Device ID information uses Vendor ID is 1022h for all devices (see Table 18 [PCI Device ID
]. - 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 an 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
- CLKGEN/CGPLL for refclk generation
- GPIOs (varying number depending on muxing)
- LPC
- Real-Time Clock (RTC)
- SMBus
- SPI/eSPI
- Azalia
- High Definition Audio
- Up to 2 lanes of SATA Gen1/Gen2/Gen3, also provides the legacy SATA support for SATAe
- Shared with PCIe
- SGPIO
- 1 Gen2
- 4 ports, includes support for legacy USB speeds
AMD is expected to unveil its next-generation AM4 CPU lineup based on the Zen 3 core architecture on 8th October as confirmed before in an official announcement.
Stay tuned for more!
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Perfectly happy with my 3700X for now, but glad to see AMD continuing to make great strides. Plus these parts will inevitably see great discounts once Zen 4 (Ryzen 5000) come out, so maybe I’ll snag a cheap 4900X in 2-3 years as a drop in upgrade.
can some one translate all them numbers and sh.t ? like is it mutch better than the 3xxx series ?
Well the word is the IPC will be a minimum 15% increase over 3xxx and maybe even up to 20 – 25%.
Basically Zen 3 is not a simple die shrink but rather a substantial design upgrade and has major IPC gains. Really that is all you need to know and that the IO is much better now.
So to answer your question, yes substantially better than Zen 2 / 3xxx and TR 3xxx.
AMD Ryzen is the future of Gaming CPUs. period. Intel is dead in the water, but stupid fanboys still keep buying their overpriced and power hungry junk core processors.
Get a ZEN and call it a day.
COPE
I could buy a 9700K right now for $150 and get a better gaming experience vs If I were to spend $400 or more on an AMD Ryzen. I don’t know what the big deal is, if you want to game you buy intel, if you want productivity you buy AMD. Maybe this will change in teh future or maybe not. But If I were to build a gaming rig right now, id build one with a 10600K or 10700K, then you overclock it because who buys a K version of a intel cpu and does not overclock?
“Stupid fanboys”
Go look in the mirror.
I am not agreeing with the OP but if you get a 9700k for 150usd for sure you could buy an AMD equivalent for even less money. The thing about AMD is the price/performance and the amount of cores, there is where AMD wins, not in high end with unlimited money. Plus an Intel motherboard for OC is more expensive than an AMD one and you need a cooler.
You should buy what is best for you and can afford, but making fair comparisons.
high number of cores is mostly useless in gaming. it’s good for rendering and other bullshit no one cares about. AMD is dogshit, will always be dogshit
That will change with games for new consoles. The Medium and Serious Sam 4 already have 8-core CPU in recommended requirements and more games will come.
Just stop…..you’re really embarrassing yourself lol…..the fkin cringe.
https://uploads.disquscdn.com/images/65b3924eb1dce19791dca9000433728822b6d92a931da7eead52ee51bb4782c4.jpg So long story short; You know absolutely nothing about PC hardware but you like to think that you do
lol the future. yeah just like the FX line of cpus would get better in the “future”. reality is they didnt and the lower core Intel cpus that beat them at the time beat them even worse several years later as hardware unboxed did a followup review. and I guess that graph up there showing Intel beating AMD by freaking 50% in MS flight simulator must really be hard for you to accept.
Still don’t beat intel in a pure game performance metric that said zen have a much going for it like more modern platform and good prices. But what’s better? Depends on what is mostly valued…
I hope Zen finally takes the perf crown even in the enthusiast gaming space this time around. Suspect 8C in same CCX should help the 8 cores (or less) to perform better there due reduced latency in ccx vs ccx <-> ccx communication but raw frequency + ringbus might still be to much. I wont buy a new cpu without an pcie4 platform that’s for sure
ZEN is the future of Gaming CPU
ZEN+ is the future of Gaming CPU
ZEN2 is the future of Gaming CPU
ZEN2 XT is the future of Gaming CPU
ZEN3….
https://uploads.disquscdn.com/images/f3c74c74a93865d29c9fba79757a3f634c8e4ce7632703c60741dbb3f7c21edc.png
https://uploads.disquscdn.com/images/5df7148e39c9b95df68b8a49a9ecfc5abc4909b47ad7cf42d75b4d1f05882624.png
yikes. glad I did not fall for the hype. my 10700k is doing well 🙂 those are stock numbers too.
I’m waiting to see what the 4900x can do. Otherwise 10900k. Though no pcie 4.0 is a bummer.
I had previously planned to see what AND had planned against Nvidia 1000 series. Glad I snatched my 1080 as AMD stalled and didn’t produce.
Will keep my trusty 9900k in the game rig until it’s an worthy upgrade (won’t bite on the 10900k as its platform is almost legacy now).
Whoever takes the crown when both camps have that support will get my buck. Could not care if the logo is green or blue really, have rigs from both brands and they do their targeted workload just fine.
AMD cultists are pathetic
https://uploads.disquscdn.com/images/13b6abaf7eaa57413098033875859b1a838de3e820603b63b882f09da40b748e.jpg
Reality when there was a compilation of ALL the review data from all the reviews published after launch:
3900X behind barely 5% VS Intel’s best.
Techpowerup has the 3900X at 96.4% of the 10900K in a multiple games review.
So… Yeah, you reek of cherry picking.
*Shame shame shame*
The 3700X has lower performance in ancient Dota 2 than in modern Assassin’s Creed: Origin? Sure, and I’m gonna eat flowers and fart perfume.
Not sure why this downvoted, AMD is clearly behind Intel in gaming. Hopefully Ryzen 4000 will catch-up but even the i5-10600K beats them across the board right now and even if there is a 15% improvement they still don’t match 2 year old Intel CPUs.
Fanbois who have degraded logical reasoning due to emotions perhaps? Only the brands gain from fanboyism… never the fanbois
Zen 3 looks insane. All I really want know is are they going to release Zen 3 Threadripper’s as well in Oct and will there be mobo refreshes of TRX40?
Man if AMD goes full Monk and drops all their line ups(plus their GPU’s own) this is going to be crazy, same with if the Zen 3 IPC is really massively better as rumoured and if all the new designs pay off.
I am dying to see the benches!
Don’t need more than 8C/16T, but do need higher IPC and/or higher clock speeds so AMD can compete with Intel for gaming. Then I’ll buy a Ryzen 4700X or whatever.