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

[DisEnchantment]

Speculate at will

 

[Philste]

HX 370 per thread score: 970.916

9950X ES per thread score: 749.531

What? 9950X has 32 Threads and over 40k score, so way over 1000 per thread.

 

[leoneazzurro]

What? 9950X has 32 Threads and over 40k score, so way over 1000 per thread.

He's speaking about the scores at 55-60W. But we are comparing mobile monolithic vs desktop chiplet and my opinion is that there is still room for optimization on the 9950X ES.

 

[jdubs03]

HX 370 per thread score: 970.916

9950X ES per thread score: 749.531

WOW. Gimme 48 threads of HX 370 please, AMD!

Just for reference for R23:

AMD Ryzen 9 8945H: cb 17423 / 1088.9375 per thread
Prime95 Power Consumption - external Monitor * - 107.5w… 80 W / 70 W SKU.

AMD Ryzen 9 8945HS: cb 17097 / 1068.5625 per thread
Single-core for both was right around 1812.
Both Prime95 and R15 power consumption were 93.5w. Using the 65 W / 45 W SKU.

AMD Ryzen 9 7940HS: cb 16867 / 1054.1875 per thread
Single-core was 1788.
Cinebench R15 Multi Power Consumption - external Monitor * - 107.6w. A bit murky since there are so many PL varieties but the device closest to the 107.6w value was a 104.7w and did a cb 16285 / 1017.8125 per-thread, was 65 W / 60 W rated.

(all values are from notebookcheck.net)

Will be interesting to see the power draw for similar testing.

 

[Philste]

After doing some math I would say this is basically full throttle for strix, so more a score of a potential Desktop SKU where TDP is no limit.

How I got to this conclusion:

8700G has ~18k in multi, 1833 in single according to CPU monkey. 1833×8×1.25(for SMT) = 18330. Fits quite well, so I just assume 8700G is able to run allcore on specified Boost.

If we do this for Strix we get: 2010×4×1.25= 10.050 for ZEN5

1460(3.7GHz Boost for ZEN5c according to David Huang)×8×1.25 = 14.580

So I get 24.600 as max value strix can theoretically achieve, 8700G was 1.5-2% higher than reality so I would say 24.400 is the max points strix can achieve.

Cutdown strix: ~19600 points with same measurement.

 

[Josh128]

Thats the difference between monolithic design + Zen 5c cores vs MCM high power cores. Much, much more efficient at low power and much lower power at idle.

 

[IEC]

I wouldn't bother putting too much stock in a gray market ES.
1) It is an ES. Who knows what is different from retail.
2) "It's totally a 9950X! I swear it!" It wouldn't be the first time someone faked CB data...

 

[igor_kavinski]

I wouldn't bother putting too much stock in a gray market ES.

I don't think the ES user I know, obtained it illegally. If he did, I would've bought one from him too

 

[Nothingness]

I don't think the ES user I know, obtained it illegally. If he did, I would've bought one from him too

The problem is not legality but rather how much it is representative of the final consumer product.

 

[igor_kavinski]

The problem is not legality but rather how much it is representative of the final consumer product.

Yeah, I totally understand that. Curious to see how much the final retail sample will differ from the results posted so far.

 

[PJVol]

Your ES is fed with the right cores voltages but the VRMs voltage is kept at a fixed value whatever the cores effective voltage.

I'm curious what do you draw this conclusion from?

 

[igor_kavinski]

@Josh128

Enjoy your prize from our excellent ES user!

 

[igor_kavinski]

The ES Beats 14900K.

 

[Malachijtjfjf]

@Josh128

Enjoy your prize from our excellent ES user!

View attachment 103388

Would a 7950x hit 5.75ghz in this test?

 

[Hail The Brain Slug]

Would a 7950x hit 5.75ghz in this test?

Looks like the ES clocked at 5650? I'll run this on my stock 7950X and see where it clocks.

 

[PJVol]

Enjoy your prize from our excellent ES user!

What happened to PBO and why is the CCLK limit now 5650 Mhz?

 

[Josh128]

@Josh128

Enjoy your prize from our excellent ES user!

View attachment 103388

Awesome, please convey my thanks to ES user! So its one point from the M3 top score at 5.65GHz. Very nice. Do you know if he had to finagle anything to get here / this is with boost 'up to' 5.7GHz?

Looks like max clock recorded was 5.65GHz in HWinfo. That means its possible we'll see another 50-100MHz for retail, possibly topping the M3 score. Very nice.

 

[Det0x]

What happened to PBO and why is the CCLK limit now 5650 Mhz?

R24 ST it is, if it looks like he can get it close to 5.7/what should be stock boost. If it doesnt look like he'll be able to do it, I'd rather not give that kind of bait to the trolls. In that case I'll take a max tuned MT run.

He wanted to see stock boost/fmax for this ES i guess (?)

 

[Josh128]

He wanted to see stock boost/fmax for this ES i guess (?)

I asked for 5.7 ST to see what retail will bring. Igor said that may not be possible with this ES, but they would try. So its unclear if retail will behave this way, but it seems like max freq should at least touch 5.7 just through the process of booting into Windows on retail, which was not the case with ES. Whether or not retail will reach a tiny bit higher and average 5.7-5.75 during this test is unknown, but this is close enough to reasonably expect at least this score on all properly cooled 9950X retail CPUs.

 

[PJVol]

He wanted to see stock boost/fmax for this ES i guess (?)

Idk... what's the stock Fmax for the 7950X ? In other words, what's its core effective clock under the ST workload?

 

[igor_kavinski]

Do you know if he had to finagle anything to get here / this is with boost 'up to' 5.7GHz?

I think this is as stock as that ES can get.

 

[Hail The Brain Slug]

Idk... what's the stock Fmax for the 7950X ? In other words, what's its core effective clock under the ST workload?

With EXPO off in a fully stock config mine would not exceed 5.65 GHz. I enabled EXPO (no PBO) and it's hitting 5.7GHz

No idea why EXPO changed it. Unless maybe the membw was constricting it. I know it's more memory sensitive than previous cinebench.

 

[igor_kavinski]

With EXPO off in a fully stock config mine would not exceed 5.65 GHz. I enabled EXPO (no PBO) and it's hitting 5.7GHz

What's the ST score at 5.65 and 5.7?

 

[Abwx]

I'm curious what do you draw this conclusion from?

The rate at wich the score increase as he increase power, we ll know more once Computerbase do their review since they ll make tests at 45, 65, 88 and 142W like they did for the 7950X.

 

[Josh128]

I thought EXPO was for RAM overclocking only? It affects ST boosts?

 

[FlameTail]

AMD's Zen 5 chips pack in 8.315 billion transistors per compute die, a 28% increase in density

Something it did not do earlier.

www.tomshardware.com

28% is incredible.

That's like a full node shrink worth of density gain.

Physical Design magic?