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AMD demonstrates Ryzen 9 5900X prototype with 3D V-Cache stack chiplet design
- Thread starter RavenXXX2
- Start date
What difficulty? Milan-x is selling very well, implementetation alone isn't problem, only cost because it is mainstream product unlike milan-x.
By differculty I mean either the production costs were to high for a 2CCX desktop part or that the TDP limits would mean that any chip over 8 cores would see an even larger clock regression which would nullify the gains.
Soldato
When she held up the 5900X with vcache on one of the CCD'S. (Not the 5800x...the moded 5900x demo) whatever announcement that was. They talked about production starting at the end of the year. (2021)
I didn't see any mention of spring 2022 until this year.
At Computex, June 2021, Lisa Su said production would "start at the end of the year".
Soldato
Zen3 chiplets with 3D cache did start then, for EPYC Milan-X
The demo was gaming focused, benchmarking
a 5900X3D against a regular 5900X. Lisa Su didn't say "server products will be available in late 2021, consumer desktop products in Spring 2022".
With the new Spring date it's possible that the 5800X3D could be released over one year after the initial announcement and gives credence to the rumours of issues and delays during development.
Soldato
No, she said 3D chiplet production starts end of 2021. Nothing more, nothing less. And it did.
There were no products that utilise 3D chiplets announced, there were no promises, no timescales.
Disagree with you. That's not the impression given. If it was server focussed demo, yes. The server version must have been close to finished so why choose the consumer gaming focused product?
The forums and tech sites went with what was said. AMD could have clarified earlier than January 2022 and they chose not to.
As I've said with the timescales now, it could be over a year from announcement to arrival which to be honest is odd. The thinking at the time was it would around the AL release which does make sense as a spoiler tactic.
Soldato
But the thing about it being difficult etc makes zero sense because they have been releasing products with it. They just were not desktop products because honeslty it comes down to economic side and so they can certainly make the profit of the server stuff with it rather than the desktop stuff.
Soldato
I love how posting facts about a CEO's announcement is considered bickering. Yet the post that is incorrect is still left up. What is this?
Soldato
Just noticed this myself. Honestly I wonder if forum rules, moderating guidelines and common sense are even in the same Venn diagram any more.
Nah.
Purely binning and product optimisation IMO.
a 5900X3D or 5950X3D will need at least one low leakage CCD to hit the power/clock targets required for that SKU. I would imagine there is a lot of overlap between such a low leakage CCD and what they throw into Milan-X. OTOH the 5800X3D can use a higher leakage CCD that is unlikely to hit a Milan-X bin and it means AMD are not sacrificing Milan-X supply to provide something to the consumer market.
With the B2 stepping I'd expect most of these dies will be low leakage now.
Soldato
So even more stock for Milan-X then. There's nothing more to it than EPYC always gets priority.
Yeah which is why the 5800X3D will be a paper CPU for the most part.
Associate
You think its gonna end up on a Gamers Nexus T-shirt ?
Soldato
He's gone all in thus far, sub-par performance vs Intel, highly priced, low or no stock, limited run or limited edition. He's still bitter that his wife paid full RRP for a 5800X that he slagged off endlessly as overpriced when they came out.
Intel still dind't replicate Zen 3 success, even with lower launch MSRP, Zen 3 still dominates in sales from what i see in every major IT retailer. And just when Intel got leading performance (but no sales), Zen 4 will come, and then AMD will have again leading performance beside good sales.
Associate
Currently Inel lead in price and performance, AMD lead in efficiency. When AMD did lead for a short period they attempted to push prices up.. can you guess what's coming if Zen4 is superior ?