Friday, July 1st 2022
AMD Readies More Ryzen 5000X3D Processors?
AMD is looking to expand its Socket AM4 Ryzen 5000X3D processor lineup, according to Greymon55, a reliable source with AMD rumors. The current Ryzen 7 5800X3D 8-core processor was well received by the tech-press for its 3D Vertical Cache innovation that significantly improved gaming performance, putting it in the same league as Intel's fastest 12th Gen Core "Alder Lake" processors, despite being based on the older "Zen 3" microarchitecture. AMD uses the same 8-core 3DV Cache chiplet (CCD) in its EPYC "Milan-X" enterprise processors. This lineup could see an expansion, with announcements expected in July.
If true, it could see the introduction of SKUs such as the Ryzen 5 5600X3D, Ryzen 9 5900X3D, or perhaps even the 5950X3D, with the latter two featuring a mind-boggling 200 MB of Total Cache (L2+L3). This would provide a tempting upgrade path to everyone with a Socket AM4 platform, now that AMD has extended official "Zen 3" support to even the oldest AMD 300-series chipset motherboards. There is yet another rumor that predicts AMD could develop certain "Zen 4" SKUs on the AM4 package, which sees a "Zen 4" CCD paired with a current-gen cIOD that has DDR4 and PCIe Gen 4 connectivity. Regardless of which rumor is true, AMD's support for AM4 isn't ending anytime soon.
Source:
Greymon55
If true, it could see the introduction of SKUs such as the Ryzen 5 5600X3D, Ryzen 9 5900X3D, or perhaps even the 5950X3D, with the latter two featuring a mind-boggling 200 MB of Total Cache (L2+L3). This would provide a tempting upgrade path to everyone with a Socket AM4 platform, now that AMD has extended official "Zen 3" support to even the oldest AMD 300-series chipset motherboards. There is yet another rumor that predicts AMD could develop certain "Zen 4" SKUs on the AM4 package, which sees a "Zen 4" CCD paired with a current-gen cIOD that has DDR4 and PCIe Gen 4 connectivity. Regardless of which rumor is true, AMD's support for AM4 isn't ending anytime soon.
121 Comments on AMD Readies More Ryzen 5000X3D Processors?
The pictures which show that 5800X3D when delided has interposers in place just confirms that AMD aimed at 2-chiplet 3DV Zen3/Vermeer+ CPU models... This isn't completely true. There are some workloads, like some compression algorithms (data, not A/V) or databases which benefit hugely from the large cache...
Also, there will definitely be some scientific calculations, simulations, etc. which do not require server-type processors, like EPYC's which woudl nevertheless benefit from a large cache. SRAM, not DRAM. CPU cache is SRAM (static RAM)...
But I agree otherwise what with you are saying... So they would release 5950X3D now? That doesn't make any sense.
Clearly they encountered a specific "last-minute" problem, that's why they have released 5800X3D only initally.
That AMD wants to release 5900X3D or 5950X3D now shows, that the 3DV-cache actually is much more important in terms of future roadmap/innovations than just simply increasing the cache size.
As it seems, a 3DV-cache will allow AMD to free the CPU chiplet off the L3 cache completely which will make place for "little cores" (aka Zen 4c) to be added to the CPU chiplet. This way AMD will be able to double the number of cores (albeit with a half of "small cores") on the AM5 platform. Using more 3D-stacked chiplets, it will have the possibility to have even more cores without having to have a yet another platform... No, the only reason of doing that is that AMD desperately needs a 2-chiplet CPU with 3DV-cache to be tested "in the wild" as soon as possible.
Which means that AMD will be using the 3DV-stacked L3 cache for other purposes than just increasing the cache amount and it will be really soon (otherwise AMD could have waited for Raphael with the 3DV-cache).
There are some rumours about Raphael-X being released in the end of this year. That means that a 3DV-stacked L3 is a part of what Raphael-X will be, but it isn't the only fancy technology, Raphael-X will bring.
Most probably, the 3DV-cache will be used to free the CPU chiplet off the L3 cache so that they can add "little" core (Zen 4c) into the CPU chiplet.
And AMD apparently doesn't want to make too many steps at once so they need to test the 3DV-cache alone with 2 CPU chiplets.
That's why they are willing to risk that 5950X3D will bring less interests in the AM5 platform initially, because they have to do this (Raphael-X) right as they need more cores to be able to compete against Raptor Lake and Meteor Lake... Most probably, Raphael-X will depend heavily on the 3DV-technology, but that will allow to do a much more fancy stuff than just having more L3 cache... Because they need the 3DV-technology in order to bring a big.little architecture with 2x the core count to compete against Raptor Lake/Meteor Lake.
They need that the 3DV-cache technology is tested thoroughly also with 2-chiplets / CPU before they can make further steps.
Also, if AM5 has a separate voltage rail for the L3 cache, we could see unlocked X3D processors...
I think Zen 4 for AM4 will be AMD's answer to LGA 1700 supporting DDR4 and DDR5.
It seems that AMD will make pairs of a big and small core sharing a L2 cache each.
That would make perfectly sense as it would allow for processes/threads to migrate from the big to the small core and vice versa rapidly (a problem Intel has now with P+E cores).
Also, in that scenario you would have only 8x L2 cache on a 16C die which means you don't have to design a new topology for the interconnects between the cores (which would be less efficient anyway).
Everything just makes sense in this scenario according to the leak in january.
If AMD was able to develop two variants of the Zen4 core, it will surely have no problem desinging a CPU chiplet without the L3 cache. The advantage is also that it is hard to optimize the process for both - logic and memory. That's why a separate L3-cache chiplet makes much sense... That is unrelated. But I think you may be right in this point.
Something tells me they will get the voltages right and the 5900x3d and 5950x3d will perform better than regular. Tweaks will happen for sure. That also tells me, Zen 4 is faster than we think and I'm sure AMD would not jeopardize their sales with these Zen3 CPUs and it wont be the case. At least, that is my conclusion about broader range of 3D Zen3 CPUs.
I don’t know if it’s possible.
Only if zen 4 is double the performance of anything and plays on its own league…
“No, the only reason of doing that is that AMD desperately needs a 2-chiplet CPU with 3DV-cache to be tested "in the wild" as soon as possible.”
That already happened many months ago with the server chips (Milan-X). It’s nothing special and the 5800X3D is only a offshoot of those, not a experiment or something like that. Neither will be a theoretical 5950X3D. There’s no point in designing a cpu without L3 cache, 3DV cache is more complicated and more expensive to include, so all CPUs will always have L3 cache and 3DVcache is just optional and additional.
The 5800x3d is faster at games, nothing else. Even the 5800 no 3D is not faster than a 12700k.
Also, don't forget AMD will be using BIGlittle at some point the same as Intel is now. Will you still be calling them eazen cores then, i bet not because it's AMD using them.
Stop the insults.
Report the problem and do not make a retaliatory posts.
AMD Ryzen 7 5800X3D - Ryzen 7 5000 Series 8-Core 3.4 GHz Socket AM4 105W Desktop Processor - 100-100000651WOF - Newegg.com
Intel Core i7-12700K - Core i7 12th Gen Alder Lake 12-Core (8P+4E) 3.6 GHz LGA 1700 125W Intel UHD Graphics 770 Desktop Processor - BX8071512700K - Newegg.com
The 5800X3D is a good CPU for a gamer. For general use there are faster in both AMD and Intel camps.