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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You re hitting 100% on several cores when just downloading a page with a 100-300Mb internet connection
Not really, no, lmao.
so a transient but at full 30W on such a laptop.
You're not doing full 30W there over the full workload and most LNL SKUs are 17W anyhow.

Crikey, why do *I* have to defend Intel in a Z5 thread of all places.
 

Abwx

Lifer
Apr 2, 2011
11,804
4,726
136
That's pL2 and that's transient on LNL.

Irrelevant metric.
LNL was never built around maximizing nT perf@20W.
It handily wins over KRK1 at actually doing Laptop Things (at a price. pretty steep price mind you).

Plainly speaking, you're dumb. As bricks.

Yes PL2 at 37W and PL1 between 30 and 37W, i checked most reviews while you are
throwing random numbers, even when it s stated 17-20W they still stick at 30W+, the CB R23 scores dont lie.
 

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poke01

Diamond Member
Mar 8, 2022
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These battery tests do not take into account a user will do multiple things.

No ones gonna watch a youtube video for like 4hrs or refresh the same webpage every 15 seconds . Most laptop users will have word, chrome with lots of tabs open, spotify, zoom and will interact with them snd switch periodically. In these situations LNL will excel at.

The problem with Intel and AMD x86 designs is that a simple refresh of a browser will make a SoC power balloon past 25 watts esp if it goes past 5GHz. Intel minimised this problem with LNL.

The reason why the AI 350 did so well in the cinebench MT test in Hardware Canucks video is cause its MT SoC power cousmption capped at 10 watts, much lower than the M4's and Lunar Lake. However, that same lead did not translate to the browser test or the youtube test cause here low level clock optimisations and media engines endurence come into play respectively.


TLDR; In the real world, LNL will come out ahead. You HAVE to stop looking thru a cinebench outlook. Its not a real world test for laptops.
 

Abwx

Lifer
Apr 2, 2011
11,804
4,726
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Wow an irrelevant metric. next.
We can also try the 2024 cinememe, it hates AMD cores with passion.
Quite the contrary, CB R23 scores are proportional to power, you can see that the delta is quite low between all models, at 37W it does about 11k, comparatively the AI 350 does at best 17.9k at 65W, we can infer that at 15W it does about 10k.
 

adroc_thurston

Diamond Member
Jul 2, 2023
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Quite the contrary, CB R23 scores are proportional to power, you can see that the delta is quite low between all models, at 37W it does about 11k, comparatively the AI 350 does at best 17.9k at 65W, we can infer that at 15W it does about 10k.
Who the hell cares about cinememe scores on ultrathin laptop parts?
That's not even remotely the usage model.

LNL has lower 1t power and is generally more efficient at doing laptop stuff on both SOC and platform level.
But it ain't free.
 

Abwx

Lifer
Apr 2, 2011
11,804
4,726
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LNL has lower 1t power and is generally more efficient at doing laptop stuff on both SOC and platform level.
But it ain't free.

As already said the era of 1T is long gone, and with bursty loads the CPU wont reach its thermal limit, hence all bursts will reach the max TDP or close, if a single core can reach 15-17W then in any bursty workload the CPU will reach 30-34W for two cores, if there s 3 cores loaded then each will use 11W, and if there s 4 it will be 8W/core.
 

adroc_thurston

Diamond Member
Jul 2, 2023
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As already said the era of 1T is long gone
It's literally forever.
and with bursty loads the CPU wont reach its thermal limit
Indeed. That's why LNL wins at doing Laptop Things.
if a single core can reach 15-17W then in any bursty workload the CPU will reach 30-34W for two cores
That's not how bursty workloads work.
I almost miss Andrei and his AT SPEC runs that had total workload energy in joules.
 

poke01

Diamond Member
Mar 8, 2022
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watch this, start from 5:20 and watch till 8:30

AMD hasn't fixed this in Zen5, however Zen6 LP cores should help a lot if the right threads are allocated to the LP cores.
As already said the era of 1T is long gone, and with bursty loads the CPU wont reach its thermal limit, hence all bursts will reach the max TDP or close, if a single core can reach 15-17W then in any bursty workload the CPU will reach 30-34W for two cores, if there s 3 cores loaded then each will use 11W, and if there s 4 it will be 8W/core.
 
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Abwx

Lifer
Apr 2, 2011
11,804
4,726
136
It's literally forever.

Indeed. That's why LNL wins at doing Laptop Things.

That's not how bursty workloads work.
I almost miss Andrei and his AT SPEC runs that had total workload energy in joules.
Lol, it does better in advertisement and gullibility of the general public, wich you seems to be part of, same Asus Vivobook laptops and about the same wifi websurfing time as a HX370 :
 

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Abwx

Lifer
Apr 2, 2011
11,804
4,726
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It just does better.

well yeah it's defined by the OLED turd here.
Try something like X1c LNL.

Both have an OLED, that s the same ASUS Vivobooks 14" laptops set apart for the CPU, and if you look at the battery life at full load, both 75Wh, it will be exhausted while having processed only 50-60% of the work done by the HX370 using the same energy.
 

poke01

Diamond Member
Mar 8, 2022
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Both have an OLED, that s the same ASUS Vivobooks 14" laptops set apart for the CPU, and if you look at the battery life at full load, both 75Wh, it will be exhausted while having processed only 50-60% of the work done by the HX370 using the same energy.



I wouldn't take that battery chart as gospel, if you actually read what they tested LNL will get battery life for real world tasks while also being up to 10 degrees cooler which is a huge difference.

The HX 370 is not tuned for ultrathin laptops as LNL is.
 

Abwx

Lifer
Apr 2, 2011
11,804
4,726
136
View attachment 123868

View attachment 123874
I wouldn't take that battery chart as gospel, if you actually read what they tested LNL will get battery life for real world tasks while also being up to 10 degrees cooler which is a huge difference.

The HX 370 is not tuned for ultrathin laptops as LNL is.

They use the same tests so the numbers make sense, and as pointed if you load the CPU from time to time then the HX370 will be much better for perfs and battery life.

Keep in mind that it s the same laptops with the same equipement while we have been historicaly accustomed to Intel getting better and more efficent parts, if not better batteries.

Once the playing field is leveled things appear for what they are and ultimately i wont hesitate to say that LNL is vastly overestimated because that s a weak CPU in real world and often sold at outrageous price given its perfs, between the two Asus Vivobooks the one with the HX370 is a no brainer comparatively.

Notice that the Intel one is ranked 85.9% by NBC despite only 16GB and 512GB SSD while the AMD is only 84.9% with 24GB and 1024GB SSD while CB R23 scores are 112% apart and 7Zip by 126%, lol, if that s not plain bias i dont know what it is.
 
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