Discussion Zen 5 Speculation (EPYC Turin and Strix Point/Granite Ridge - Ryzen 9000)

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adroc_thurston

Diamond Member
Jul 2, 2023
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Adding a lot of v-cache to higher core-count CPUs would do a lot to alleviate bandwidth issues from a lack of additional memory channels
membw-sensitive workloads tend to be of streaming kind and they just dgaf about caches.
The other possibility is to go with LPDDR memory
Yea.
but I don't know if the market that wants more cores is down for soldered memory.
LPCAMM(2) wooooooooohoooooooo
 

Timmah!

Golden Member
Jul 24, 2010
1,461
724
136
If you look at DIY sales chart, and this is typically people who buy higher performing PCs / CPUs, the volume of sales falls dramatically past 8 cores. 12 - 16 cores are low volume.

There would be another drop like that, from 16 cores to 24 cores, leaving it with very low volume.

That potential volume of sales is what determines if AMD introduces 24 core CPUs. As long as it is miniscule, and AMD would lose money on it, it is not going to happen. If there is a sudden resurgence of 16 cores, there maybe hope for 24 cores.

One place where it could come from is if AMD decides to go after low end servers. For now, AMD (Forrest Norrod) calls that segment "low calorie". We will see if it changes...
No if you replace 16C with 24C at the same pricepoint
 

Saylick

Diamond Member
Sep 10, 2012
3,385
7,149
136
Did anyone make any sense out of what RGT is talking about? As far as architecture of client Zen 6? I am confused...

Ehhh, I always struggle with RGT videos, especially since he just rambles on and on. A 10 minute video could literally be 2 min long. Honestly, I see RGT as the next body on the rumor mill human centipede, immediately after MLID, so anything he outputs is basically going to be watered down, digested excrement anyways. I mean, the guy literally backtracked on his Zen 5 leaks right after MLID had his video with those Zen roadmap slides, so who is really feeding who here?
 

Saylick

Diamond Member
Sep 10, 2012
3,385
7,149
136
Same.

I used to watch their videos a lot, but these days I just can't keep my attention span going for more than 5 minutes.

Get to the point or go home 😅
Yeah, I watched the video (at least tried), but I too lost interest in it after like 30 seconds. It doesn't help that a lot of what he's trying to say have already been communicated in this thread by @adroc_thurston. Also, RGT needs to focus on his personal hygiene or something; the dude looks so unkept in every video, as if all he does is lurk Twitter and hardware forums while losing sleep to scrape info for the next video.
 

Joe NYC

Platinum Member
Jun 26, 2021
2,324
2,929
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Ehhh, I always struggle with RGT videos, especially since he just rambles on and on. A 10 minute video could literally be 2 min long. Honestly, I see RGT as the next body on the rumor mill human centipede, immediately after MLID, so anything he outputs is basically going to be watered down, digested excrement anyways. I mean, the guy literally backtracked on his Zen 5 leaks right after MLID had his video with those Zen roadmap slides, so who is really feeding who here?

Yeah. And assuming that the RGT guy really has some unique information from real sources, I think the more correct way to phrase things is that "I (RGT guy) don't understand the information I got", instead of rumbling on making it seem as if AMD or his sources were confused.

With that out of the way, some of the tidbits:
- IOD being connected to V-Cache. This would presume that every chip has a V-Cache. But it may not be as crazy as it seems. Suppose V-Cache is more than just SRAM, and it is has some additional logic, directing cache misses to the IOD.

Normal scenario (my understanding) is that the L3 cache tags are on the main die, and the main die knows which memory request is going to be a miss, and it sends the request to IO die. So it might be somewhat feasible that this whole functionality is housed in the stacked chip that used to be just SRAM.

- memory controller being in CCD, iGPU also being in CCD - neither of which makes a lot of sense to me.
 
Reactions: Timmah!

Joe NYC

Platinum Member
Jun 26, 2021
2,324
2,929
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Yeah very sexy standard of an actual client-first replaceable memory solution.

Will Samsung provide option for OEMs to pair AMD CPUs with inferior version of this new memory? Say, saving 7 cents on the laptop BOM and reducing performance by 25%. Because that seems to be the key requirement by OEMs, in order to release AMD laptop...

If not, AMD will need to step in and facilitate it.
</sarcasm>
 
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Gideon

Golden Member
Nov 27, 2007
1,709
3,927
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Same.

I used to watch their videos a lot, but these days I just can't keep my attention span going for more than 5 minutes.

Get to the point or go home 😅
There is a direct relationship between the video length and the monetization the creators get (presumably to shove more adds to you during the video)
AFAIK there used to be a particular threshold at 10 minutes and (every 10 minutes after that).

Whatever the case, the trend that creators tend to draw out the videos, unnecessarily repeating things is very widespread, IMHO even Gaming Nexus seems to do it from time to time (might not be intentional, but boy do they repeat stuff in their 20 min + videos)

That's also why I vastly prefer written media. Unfortunately the written Hardware review scene is a relic in today's age that just isn't monetizable.

It's like a bunch of elderly guys at a nursing home suffering from ever increasing dementia (considering the sliding quality), while every now and then some of the remaining ones are buried (yes I'm bitter )
 
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