Tuesday, October 12th 2021

AMD Confirms "Zen 3" with 64 MB 3DV Cache for Q1-2022, "Zen 4" Later, PCIe Gen5 + DDR5

AMD today celebrated 5 Years of Ryzen, with a special video presentation by John Taylor, AMD Chief Marketing Officer, and Robert Hallock, Director of Technical Marketing. The company confirmed that its next Ryzen processors will come out only in Q1-2022. These processors will feature updated CPU core complex dies (CCDs) that combine the existing "Zen 3" microarchitecture with 64 MB of additional 3D Vertical Cache memory. AMD claims that this change improves performance by anywhere between 4% to 25% for games, amounting to the kind of performance uplifts you'd expect from a new processor generation.

AMD did not reveal whether the updated processors will be branded within the existing Ryzen 5000 series, or newer Ryzen 6000 series. If you remember, the "Zen+" microarchitecture enabled AMD to come up with a whole new generation, the Ryzen 2000 series, despite modest 4% IPC uplifts, albeit significant improvements to the boosting behavior, resulting in improved multi-threaded performance. What remains unclear is whether the updated "Zen 3" chips with 3DV Cache will herald a new platform, or whether these chips will be built on the existing Socket AM4 with DDR4 memory and PCI-Express Gen 4.
AMD's next truly next-generation Ryzen processor will come out within 2022, the company confirmed. Based on the new "Zen 4" microarchitecture, the company is targeting significant IPC uplifts, that will help it compete with Intel; but more importantly, introduce the new Socket AM5. An LGA package with 1,718 pins, AM5 will enable next-gen I/O. The "Zen 4" based next-gen Ryzen will indeed feature the combination of DDR5 memory and PCI-Express Gen 5, letting AMD level up to Intel on that front.

AMD's 2022 roadmap for desktop Ryzen processors looks quite similar to its 2020 roadmap. The company had initially refreshed its Ryzen 3000 series with a trio of Ryzen 3000XT SKUs that missed the mark of being viable stopgaps; but followed it up with the groundbreaking Ryzen 5000 "Zen 3" series toward the end of the year. 2021 will go down as an year without any new Ryzen processor generation.

Another aspect of Socket AM5 confirmed by AMD in the presentation was backwards compatibility of coolers with Socket AM4. You'll be able to retain your AM4-compatible coolers for AM5, without needing any adapters or upgrades to your coolers' retention modules.

As for a concrete response to Intel's Hybrid CPU core designs that the company will be pioneering on the desktop PC with "Alder Lake," AMD doesn't appear to be having a hybrid core design of its own, but hinted at the possibility that it is working on a new power-management solution built from the ground up, which will probably run a homogeneous set of CPU cores across very different performance/Watt bands, while retaining a consistent ISA. AMD has given this a rather uninteresting name—Power Management Framework.

Find the AMD presentation here:

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136 Comments on AMD Confirms "Zen 3" with 64 MB 3DV Cache for Q1-2022, "Zen 4" Later, PCIe Gen5 + DDR5

#126
TheoneandonlyMrK
seth1911Dont tell things that im not write and say. Ignored :laugh: :kookoo:
Noice, you wrote things no one understands the point of.

As for the shit posting above @lexluthermiester

There's a thread for that, never mind Ahhzz will nuke the shit out of alll.
Posted on Reply
#127
lexluthermiester
TheoneandonlyMrKNoice, you wrote things no one understands the point of.

As for the shit posting above @lexluthermiester

There's a thread for that, never mind Ahhzz will nuke the shit out of alll.
What did I miss?
Posted on Reply
#128
TheoneandonlyMrK
lexluthermiesterThis is why we need testing. I suspect that 4 e-cores will be able to do a bit better than 1 p-core, but only just. The rumor is that one e-core has the same performance as one old Core2 Conroe core, which would not be shabby. If this is true, then Intel might be on to something because a Core2Quad can Windows 11 smoothly all by itself. And with the new i5 you add 6 p-core on top of that and you have the potential for something really interesting. And with the i7 you double those 4 e-cores and add 8 p-cores, then you're talking potential for something game-changing, without breaking anyone's bank..
Posted on Reply
#129
InVasMani
The 2c 8c design actually looked most interesting if Intel made that unlocked for both core types as like a Pentium Gold style chip it would probably be good affordable option. I can see pushing 2 of those P cores to 5.2/5.3GHz at lot more readily and easily than 8 of them. I actually think Intel should've gone further on the little cores a 2c 16c design probably could've been feasible or at least a 3c 12c design. We won't know the full extent and capability until independent benchmarks have a chance to experiment with the hardware further. If the little cores aren't more efficient it would be the most counterintuitive architecture design since Bulldozer.
Posted on Reply
#130
lexluthermiester
InVasManiThe 2c 8c design actually looked most interesting if Intel made that unlocked for both core types as like a Pentium Gold style chip it would probably be good affordable option. I can see pushing 2 of those P cores to 5.2/5.3GHz at lot more readily and easily than 8 of them. I actually think Intel should've gone further on the little cores a 2c 16c design probably could've been feasible or at least a 3c 12c design. We won't know the full extent and capability until independent benchmarks have a chance to experiment with the hardware further. If the little cores aren't more efficient it would be the most counterintuitive architecture design since Bulldozer.
Ah, but if AMD wanted to do the big/little thing with VCache, they could lean on the fact that each CPU already has room for multiple dies and they could do 8 Ryzen cores on one die connected to the CCX and a die with 8 Zambezi cores connected to the CCX through the other die connection. The Zambezi cores were decently power efficient for their time and would be drastically more so now on 7nm. All they'd need to do is recycle/retool the die design, change the power profile and BAM, BOB's your uncle!
Posted on Reply
#131
InVasMani
The mixed chip approach will get better in time especially as the OS evolves and is better at leveraging the hardware approach. I can see plenty of options for AMD with how they could approach it. It's only a matter of time before AMD similarly adopts big little especially if Intel has struck a delicate balance with it some positive results.

We've already seen plenty that it works for mobile and that a market that AMD hasn't tapped into aggressively enough at the same time. I think it's probably something AMD would start with on the mobile side and later adapt to the desktop after a trial run with mobile platform for a architecture revision or two to iron out some of the quirks with it.
Posted on Reply
#132
trsttte
InVasManiThe mixed chip approach will get better in time especially as the OS evolves and is better at leveraging the hardware approach. I can see plenty of options for AMD with how they could approach it. It's only a matter of time before AMD similarly adopts big little especially if Intel has struck a delicate balance with it some positive results.

We've already seen plenty that it works for mobile and that a market that AMD hasn't tapped into aggressively enough at the same time. I think it's probably something AMD would start with on the mobile side and later adapt to the desktop after a trial run with mobile platform for a architecture revision or two to iron out some of the quirks with it.
I don't think it's about if it will get better or not, it's about do we need it? On a regular desktop, there's a couple services that can "benefit" from having a low power core to them, but otherwise what do we need efficiency core for, to constantly run the ads algorithms?
Posted on Reply
#133
InVasMani
Notch filters are awesome that's why. If I have to explain that further you don't get it.
Posted on Reply
#134
GURU7OF9
freeagentThis is one thing that annoys me with AMD. Cool now I can sell my less than a year old parts at a loss to have the latest and greatest :nutkick:
So youre saying its ok when Intel does it with Rocket Lake and Alder Lake but not AMD.

At least you can get an upgrade with drop in 3D V cache. Rocket Lake people are screwed after only 6 months!
Posted on Reply
#135
nico_80)
as a x570 owner i will try the zen 3 + as a upgrade to the zen 2 3700x i got should be a good upgrade.
Posted on Reply
#136
GURU7OF9
nico_80)as a x570 owner i will try the zen 3 + as a upgrade to the zen 2 3700x i got should be a good upgrade.
I will probly give it a go too.
They say on average it's approx 15% better for gaming. Will wait for some reviews first but ... to see how much it helps. Maybe even switch up with more cores from my 5600x.
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