AMD delayed Ryzen 9 3950X launch due to unsatisfactory clock speeds?

by Hilbert Hagedoorn on: 09/25/2019 08:02 AM | source: digitimes | 58 comment(s)

A few days ago we've reported that the AMD Ryzen 9 3950X 16-core part has been delayed and pushed back towards November. The news was made official by AMD. To date, however, there has been no word given as to what the reason is behind the delay. We did ask, but there was no answer to that question.

Logic assumes that AMD is facing the boost issues it had with the previous Ryzen processors. Something that is fixed with the new AGESA 1.0.0.3 ABBA Firmware btw. Is the same issue affecting the Ryzen 9 3950X 16-core processor? As it turns out, production at TSMC is not an issue as Digitimes found out. However, they have a source that claims that AMD has problems 'reaching unsatisfactory clock speeds' with the sixteen core part. That source would be an employee active in the motherboard maker industry.

The Ryzen 9 3950X 16-core processor has been advertised with the fastest single-core bin boost at 4.7 GHz, its base frequency is an admirable 3.5 GHz. For them to be able to reach advertised clock frequencies on their many-core part (16c/32t) AMD likely made it a bit complicated for themselves, as it is the fastest boosting product, it has the most cores and it has two 8-core processor dies. To reach the advertised boost frequency of that impressive 4.7 GHz on a single core AMD has to bin all dies, gauntlet sort them for the best units if you will.

We have no doubt that AMD will be able to out the product at advertised performance, but what volume will be available in November remains an open question.

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SweenJM
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#5714294 Posted on: 09/25/2019 08:22 AM

I would really like to have one of these....I'd take 4.4

nizzen
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#5714296 Posted on: 09/25/2019 08:48 AM

My 3900x is reaching max boost in "idle", but if it's under load of any kind, the max singlecoreboost is way lower. Max boost is like 2ms

Using ABBA 2.1 bios with Asrock x570.

Hilbert Hagedoorn
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#5714302 Posted on: 09/25/2019 09:10 AM

My 3900x is reaching max boost in "idle", but if it's under load of any kind, the max singlecoreboost is way lower. Max boost is like 2ms

I did some testing the other day on 3700X but it was fine really. ASrock v1.7 ABBA BIOS.

Can you try a 1 thread Cinebench run and monitor with HWinfo?

Btw you need to cover your bases when testing, nothing running in the background and remove your LAN cable so that Windows isn't dong stuff in the background that can invoke threading.

yeeeeman
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#5714308 Posted on: 09/25/2019 09:54 AM

3900X is already reaching 4.7Ghz for some users on ABBA bios, so no problem for them to get 4.7Ghz for 3950x. Hence this news is not relevant...
We know from multiple sources and official announcements that TSMC has troubles keeping up with demand so 3950X not launching now is just common sense. It would have been a paper launch.

Kaarme
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#5714310 Posted on: 09/25/2019 10:06 AM

As it turns out, production at TSMC is not an issue as Digitimes found out.

I wonder what this refers to. I just recall a Digitimes sourced news from a week ago, saying: "The lead time for production of 7nm chips at Taiwan Semiconductor Manufacturing Company (TSMC) has extended to nearly six months from the previous two months because of strong demand, according to industry sources." In other words, the production lines are so full that TSMC will tell you to come back in six months if you need something made. So, if AMD wanted more stuff than previous agreed (for example because they aren't getting as large a portion of high clocking units as they expected), it's possible TSMC simply can't help them at all without a considerable delay.

RooiKreef
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#5714312 Posted on: 09/25/2019 10:17 AM

The first time I heard about the delay of the 3950X the first thing that came to my mind was that they have issues reaching the clock speeds. I guess my thought was correct then, or was it?

barbacot
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#5714324 Posted on: 09/25/2019 11:03 AM

We have no doubt that AMD will be able to out the product at advertised performance

- or - if in doubt press the "update firmware" button .

Error8
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#5714325 Posted on: 09/25/2019 11:04 AM

This whole PBO/self boost system from AMD seems flawed. I'm keeping my 3700X @ 4.3 ghz all time at a very low 1.25 V. I didn't even try it to take it lower. I'm getting better temps, both idle and load and better scores in all the benchmarks I've tried.
With PBO or stock settings, the CPU voltage goes as far as 1.5 V and it's hotter, performs worst and has like 4.1 ghz maximum all cores boost and that with the beefiest air cooler on the market.

mentor07825
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#5714331 Posted on: 09/25/2019 11:32 AM

Any recommended software or monitoring tool to see the boost speed of a CPU for testing purposes? I'll be doing the firmware update this weekend and I'd like to do a before and after test.

Astyanax
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#5714333 Posted on: 09/25/2019 11:39 AM

Any recommended software or monitoring tool to see the boost speed of a CPU for testing purposes? I'll be doing the firmware update this weekend and I'd like to do a before and after test.

ryzen master.

Ziffer
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#5714341 Posted on: 09/25/2019 11:50 AM

Am I the only one thinking, that AMD could have released a 3920X (for example) with 16c/32t and a max boost clock of 4,4-4,5 GHz for 600-675$, which will be sold out in days? If they really have issues with clock speeds, they could have easily done that, mentioning something like, ok we will delay 3950X, but in order to satisfy (or whatever sweetened version they come with) enthusiasts we will introduce bla bla and so on. Just my thought on this.

neikosr0x
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#5714343 Posted on: 09/25/2019 12:00 PM

ryzen master.
HWiNFRO64 Works just fine.

This whole PBO/self boost system from AMD seems flawed. I'm keeping my 3700X @ 4.3 ghz all time at a very low 1.25 V. I didn't even try it to take it lower. I'm getting better temps, both idle and load and better scores in all the benchmarks I've tried.
With PBO or stock settings, the CPU voltage goes as far as 1.5 V and it's hotter, performs worst and has like 4.1 ghz maximum all cores boost and that with the beefiest air cooler on the market.

if you are gaming STOCK would work just better. My 3900x gets 4.550 on most games and typically 4.275 / 4.30 across all cores in all games. but almost half of the CPU clock over 4.4ghz

Netherwind
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#5714351 Posted on: 09/25/2019 12:18 PM

My 3900x is reaching max boost in "idle", but if it's under load of any kind, the max singlecoreboost is way lower. Max boost is like 2ms

Using ABBA 2.1 bios with Asrock x570.
Try single threaded apps.

Here is my 3800X on AB BIOS

R V
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#5714352 Posted on: 09/25/2019 12:19 PM

"To date, however, there has been no word given as to what the reason is behind the delay. We did ask, but there was no answer to that question."

That is the ONLY TRUE THING written. The rest was all BS.

Error8
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#5714357 Posted on: 09/25/2019 12:44 PM

HWiNFRO64 Works just fine.

if you are gaming STOCK would work just better. My 3900x gets 4.550 on most games and typically 4.275 / 4.30 across all cores in all games. but almost half of the CPU clock over 4.4ghz

AC Odiseey gets a better score with 4.3 ghz OC, then with STOCK/PBO. Maximum clock achieved with my CPU single threaded is 4.375 ghz. I prefer to loose those extra 75 mhz for lower temperature and voltage really. Probably I'm loosing like 1 fps in some situations, so I don't care.

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