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

[DisEnchantment]

Speculate at will

 

[CakeMonster]

Wondering the same thing. My brain can't comprehend such a huge performance uplift with Zen5 that it would be worth upgrading to the non-3D chips from Zen4 3D.

That's basically half a generation, so I doubt AMD would ever have counted on that. Personally, I prefer avoiding the thread scheduling schemes for now, so I'm happy to stay on the vanilla 2 CCD chips.

 

[igor_kavinski]

Are those cache figures just for L3 per CCD or total CPU cache including L1/2/3 of both CCDs?

 

[Tuna-Fish]

Are those cache figures just for L3 per CCD or total CPU cache including L1/2/3 of both CCDs?

L2 + L3. L1 caches are inclusive (every line on L1 also reserves a spot in L2)

 

[Joe NYC]

Almost same clock but surprisingly lower TDP

Alleged AMD Ryzen 9000 desktop Zen5 specs leaked: Ryzen 9 9950X with 16 cores up to 5.7 GHz - VideoCardz.com

AMD Granite Ridge leak AMD is said to be introducing four SKUs at Computex. The Ryzen 9000 series, equipped with Zen5 cores, will be unveiled at Computex. A slide from a press briefing has been made public, listing four models featuring the 9000 SKU names, as expected. Ryzen 9000 The flagship...

videocardz.com

View attachment 100125

There are still 2.5 days left for AMD to change the naming convention

 

[PJVol]

Who knows Chinese what is written in the first two lines on the left picture?

 

[Mahboi]

主要特性？Raphael相同

Spoiler

The twist is that I speak Japanese not Chinese.
Just use the characters I wrote and Gtranslate from Chinese and Hope.

 

[PJVol]

Lines starting with CCD

 

[igor_kavinski]

Spoiler: Translation with Google Lens

4. Introduction to Granite Ridge CPU

CPU architecture upgrade

CCD upgrades Zen5 architecture and improves IPC

CCD upgrades to 4nm process and increases frequency

Marketed as Ryzen 9000

例:Ryzen 9 9950X Ryzen 9 9900X、 Ryzen 7 9700X. Ryzen 5 9600

Note: The latest beta version of BIOS AGESA1.1.7.0 Patch A already supports the new generation of CPUs.

Main features are the same as Raphael

Up to 16 core 32 thread

TDP: 65W~170W

Each CCD has 8 cores and shares 32MB L3 cache

MCM design:

Ryzen 9 : IOD+2個CCD

Ryzen 7/5: IOD+1個CCD

YOUR ACTION

MICM

I had the image translated but stupid Android didn't share the full image when I sent it to my email.

Nothing special on that slide.

 

[Mahboi]

Yeah there's nothing at all, what did you expect?
Also I hate how "Measuring Box" in Jap is somehow "Rise" in Chinese...
All it says is "raised IPC 升級Zen5架？。撮升" and mentions 4nm.
The English/numerals tell everything here.

 

[Joe NYC]

Almost same clock but surprisingly lower TDP

Alleged AMD Ryzen 9000 desktop Zen5 specs leaked: Ryzen 9 9950X with 16 cores up to 5.7 GHz - VideoCardz.com

AMD Granite Ridge leak AMD is said to be introducing four SKUs at Computex. The Ryzen 9000 series, equipped with Zen5 cores, will be unveiled at Computex. A slide from a press briefing has been made public, listing four models featuring the 9000 SKU names, as expected. Ryzen 9000 The flagship...

videocardz.com

View attachment 100125

BTW, I wonder if it is a binning issue or marketing issue or power limit issue why AMD is keeping the boost clock of 9700X 200 MHz below 9950X.

BTW, power goes from 105 Watts of 7700X to 65 Watts of 9700X

Edit: Where is the SKU listing of Zen 5 from? I don't see it in the Videocardz article.

 

[igor_kavinski]

If the TDP values are correct, it's kinda bad news for Zen 5 on the efficiency front.

12 cores consuming 120W.

16 cores consuming 170W.

Either the 9900X is artificially power limited to keep 9950X at a very high price (solves the problem of people ignoring the 9900X and going straight for the 9950X)

OR

Four extra cores is making the CPU consume an extra 50W???

One possible explanation is again that the 9900X has much lower all-core clocks, so the 9950X looks like a very premium, expensive part.

 

[igor_kavinski]

BTW, power goes from 105 Watts of 7700X to 65 Watts of 9700X

Wow. Excellent point!

AMD seems to have a "real" Bulldozer at their hands this time. Bulldozing the competition, instead of bull-"dozing" during the Sandy Bridge era

 

[blackangus]

Did you miss my previous post? http://www.portvapes.co.uk/?id=Latest-exam-1Z0-876-Dumps&exid=thread...dge-ryzen-9000.2607350/page-468#post-41219873
For some real numbers you can take a look here: http://www.portvapes.co.uk/?id=Latest-exam-1Z0-876-Dumps&exid=thread...dge-ryzen-9000.2607350/page-434#post-41207749

"Optimal speed" as you put it for 2000FCLK would be 6000MT/s in 1:1 mode or 8000MT/s in 2:1 mode
But why are you limiting yourself to 2000mhz FCLK in the first place ?

Currently we have these "sweet spots" with Zen4 when we consider the normal FCLK range is from 2000mhz to 2200mhz (OC)
2000/6000 1:1
2133/6400 1:1
2200/6600 1:1

2000/8000 2:1

But like i showed in Gigabyte screenshot above, in 90% of the cases FCLK clockspeed is the bottleneck/limiting factor so you want to run at as high as you can in most cases
2200/8000 2:1 which i like to run is just bruteforcing performance outside the "golden triangle", but it actally beat everything except 2200/6600 1:1 in latency


We dont know how high the X870 + Zen5 combo can run in 1:1 mode yet, but if we follow the logic from Zen4 we get the following "optimal/synced settings"

2400mhz FCLK / 7200MT/s if it can run that high in 1:1 (2400/4800 would be too gimped)
2400mhz FCLK / 9600MT/s in 2:1 mode if they finally have fixed multipliers above 80x (and if your motherboard/CPU/memory are up to the task)

Or lets say they haven't fixed memoryspeeds above 8000MT/s and your able to run 2600mhz FCLK (+200mhz like with Z4) then 2600mhz FCLK / 7800MT/s 2:1 mode could be a nice setup

Yeah I did miss that some how (Ill blame the meds Im currently on).

Reading both your posts the second post here is great and gives me the confirmation I was trying to get to.
I am not really limiting scope to 2000, I just used that as an example to start with as a base. I understood (well thought I did but wasnt 100% sure) that FCLK is the main performance factor, but just limited to 2000 to talk about a specific example to talk about.
My intent here is figure out what speed memory I would like to buy and what cost that will look like, before I hit diminishing returns from a cost/performance perspective.
I had planned to try to get a good of FCLK as possible, but was unsure on where I should stop looking for memory speed before hitting diminishing returns.

I appreciate your examples here, they are pretty helpful - Thank you!

Question:
In your example of - "Optimal speed" as you put it for 2000FCLK would be 6000MT/s in 1:1 mode or 8000MT/s in 2:1 mode
Would it be correct in saying that the 2000 FCLK and 6000 MT/s in 1:1 would provide lower latency but less throughput than the 2000 FCLK and 8000 MT/s in 2:1?
Or is that not the correct conclusion to draw?

 

[Joe NYC]

Wow. Excellent point!

Do you know where that table with individual Zen 5 SKUs, clock speeds etc. is from? Is it related to Gigabyte leak or from a different source?

 

[igor_kavinski]

Is it related to Gigabyte leak or from a different source?

Different I think:

https://twitter.com/x/status/1796552007542833512

 

[Philste]

If the TDP values are correct, it's kinda bad news for Zen 5 on the efficiency front.

12 cores consuming 120W.

16 cores consuming 170W.

Why? Every TDP is lower or same than ZEN4. 12 Core 7900X has 170W, 8 and 6 Core 105W.

The funny thing is that Adrocs Rumors already begin to seem off, he claimed ZEN5 uses quite a bit more Power than ZEN4.

 

[adroc_thurston]

he claimed ZEN5 uses quite a bit more Power than ZEN4.

It does.

 

[igor_kavinski]

Why? Every TDP is lower or same than ZEN4.

It's the 9950X that is probably the only one unlocked to eat all the power it can so it might be the least efficient one.

 

[adroc_thurston]

It's the 9950X that is probably the only one unlocked to eat all the power it can so it might be the least efficient one.

That's not the issue, socket power on DT is entirely arbitrary.
None of the Zen4 parts actually used all that socked power due to thermal limits.

 

[Philste]

It does.

So it needs more power yet the TDP of the X SKUs goes down?

 

[adroc_thurston]

So it needs more power yet the TDP of the X SKUs goes down?

Yes, that's called having no competition.
1T power is still up and you're probably gonna feel it.

 

[Joe NYC]

Different I think:

https://twitter.com/x/status/1796552007542833512

This one says "increased frequency"

It's probably just +/- 100 MHz.

https://twitter.com/x/status/1796513274047209648

 

[igor_kavinski]

1T power is still up and you're probably gonna feel it.

OK, that makes sense. So it may be harder to cool, even for lightly threaded workloads like games. So AIO coolers gonna sell all around.

 

[adroc_thurston]

So it may be harder to cool, even for lightly threaded workloads like games.

Yeah the CCD area is barely bigger.
Prepare your lapping kits.

 

[igor_kavinski]

Yeah the CCD area is barely bigger.
Prepare your lapping kits.

YIKES!