Skylake Core Configs and TDPs

jdubs03 · Jun 29, 2014

That was a good catch. We all know Intel uses codenames of locations. And there is a Ice Lake in Portland, so yeah Icelake it is. Probably will support 8K+ like its nothing.

On second thought, that would be the third "lake" in a row, so that would be a change in naming schemes.

Not too much to go on, but there is an Icelake mention:
http://www.linkedin.com/pub/ritesh-thakkar/1/239/202

Fjodor2001 · Jun 30, 2014

Homeles said:
Page 1, post 1... hence the thread title.

That 4C/GT4e SKU belongs to the Skylake H-line (i.e. BGA), not S-line (i.e. LGA). The only 95 W TDP SKU known so far in the S-line is the 4C/GT2 model.

Homeles · Jun 30, 2014

There's 2 SKUs, one for H, one for S.

Fjodor2001 · Jun 30, 2014

Homeles said:
There's 2 SKUs, one for H, one for S.

Yes, there are two 4C/GT4e SKUs, one for H and one for S.

But for Skylake-S the only 95 W TDP SKU is the 4C/GT2 model. At least I cannot find any other Skylake-S model being 95 W, not in your post and neither in mine.

ShintaiDK · Jun 30, 2014

Fjodor2001 said:
Yes, there are two 4C/GT4e SKUs, one for H and one for S.

But for Skylake-S the only 95 W TDP SKU is the 4C/GT2 model. At least I cannot find any other Skylake-S model being 95 W, not in your post and neither in mine.

Look..again at the first post in the thread.

There are 2 DT 95W. 42 and 44e. And its not 95W SKUs, its 95W platform spec.

witeken · Jul 1, 2014

I don't think it has been mentioned before: Skylake will have a configurable TDP.

What amuses me is that there's so much attention for Skylake-Y's 4W TDP. Everyone seems to have forgotten that Broadwell will also have a 4.5W TDP or even 3.5W TDP.

Intel better hadn't used "60% lower TDP".

jdubs03 · Jul 1, 2014

witeken said:
I don't think it has been mentioned before: Skylake will have a configurable TDP.

What amuses me is that there's so much attention for Skylake-Y's 4W TDP. Everyone seems to have forgotten that Broadwell will also have a 4.5W TDP or even 3.5W TDP.

Intel better hadn't used "60% lower TDP".

At least with Skylake-Y they can really focus on performance again, no need to lower the TDP anymore than what it is with SKL-Y (11% reduction from BDW-Y).

witeken · Jul 1, 2014

Some Broadwell-Y SKUs are rumored to have a configurable TDP of only 3.5W.

Fjodor2001 · Jul 1, 2014

Another thing: Why are they removing the Integrated Voltage Regulator (IVR) on Skylake? When it was introduced on Haswell it was said to be the major reason they could reduce power consumption. Was that all crap, otherwise why remove it on Skylake? Are there some drawbacks with it?

ShintaiDK · Jul 1, 2014

Fjodor2001 said:
Another thing: Why are they removing the Integrated Voltage Regulator (IVR) on Skylake? When it was introduced on Haswell it was said to be the major reason they could reduce power consumption. Was that all crap, otherwise why remove it on Skylake? Are there some drawbacks with it?

Yet it will return in Icelake.

Nobody knows besides that "The Skylake team doesn't like it".

Hyperthreading also dissapeared between uarchs. (Present in P4, absent in Core 2, returned in Nehalem.)

Fjodor2001 · Jul 1, 2014

Hmm.... Icelake? What's that. And what about Cannonlake and later mainstream CPU generations.

Also, from where do we know that the Skylake team doesn't like it and that they are the only ones?

witeken · Jul 1, 2014

Why wouldn't they like it?

ShintaiDK · Jul 1, 2014

Fjodor2001 said:
Hmm.... Icelake? What's that. And what about Cannonlake and later mainstream CPU generations.

Also, from where do we know that the Skylake team doesn't like it and that they are the only ones?

Cannonlake(Shinked Skylake+tweaks) is the same platform as Skylake=No major change.

Icelake is the successor. New platform, new uarch.

Fjodor2001 · Jul 1, 2014

ShintaiDK said:
Cannonlake(Shinked Skylake+tweaks) is the same platform as Skylake=No major change.

Icelake is the successor. New platform, new uarch.

Ok, I didn't they had decided on a name for the Cannonlake successor yet. From where do we know Icelake will have IVR? Any source?

Homeles · Jul 1, 2014

Fjodor2001 said:
Ok, I didn't they had decided on a name for the Cannonlake successor yet. From where do we know Icelake will have IVR? Any source?

http://www.linkedin.com/pub/mathew-kottoor/3/798/bb5

386user · Jul 1, 2014

can anyone provide the most accurate, recent release schedule for broadwell ult and skylake ult

I've seen an article now with a simultaneous release!

jdubs03 · Jul 1, 2014

386user said:
can anyone provide the most accurate, recent release schedule for broadwell ult and skylake ult

I've seen an article now with a simultaneous release!

There are really only educated guesses on the roadmap releases. I'd expect Q1 2015 for Broadwell-U series, maybe some by Christmas, but that much is uncertain. In regards to Skylake, Krzanich stated that Skylake would not be delayed because of Broadwell.

Fjodor2001 · Jul 2, 2014

Homeles said:
http://www.linkedin.com/pub/mathew-kottoor/3/798/bb5

LinkedIn as a source... LOL! Especially from someone that is usually so picky about requiring high credibility sources (at least if they info they provide contradict your beliefs).

Anyway, that LinkedIn entry was from August 2013, so IVR could have been canceled for Icelake along with abandoning it on Skylake.

Arachnotronic · Jul 2, 2014

Fjodor2001 said:
LinkedIn as a source... LOL! Especially from someone that is usually so picky about requiring high credibility sources (at least if they info they provide contradict your beliefs).

Anyway, that LinkedIn entry was from August 2013, so IVR could have been canceled for Icelake along with abandoning it on Skylake.

LinkedIn is a great source.

mikk · Jul 2, 2014

It is indeed.

ShintaiDK · Jul 2, 2014

Fjodor2001 said:
Anyway, that LinkedIn entry was from August 2013, so IVR could have been canceled for Icelake along with abandoning it on Skylake.

They are not making any big changes on Skylake in august 2013. And removing the FVIR would be a very big task. The first prototypes of Skylake would be running by then. And only bugs and tweaks would be left during validation.

Fjodor2001 · Jul 2, 2014

Intel17 said:
LinkedIn is a great source.

Perhaps, but I think Homeles would only agree to that if the information provided there matches his opinion.

Fjodor2001 · Jul 2, 2014

ShintaiDK said:
They are not making any big changes on Skylake in august 2013. And removing the FVIR would be a very big task. The first prototypes of Skylake would be running by then. And only bugs and tweaks would be left during validation.

Note that the LinkedIn entry from August 2013 I referred to mentioning IVR was for Icelake, not Skylake. So I don't think it is too late to remove the IVR in Icelake. That is if the LinkedIn entry even matches reality to begin with.

ShintaiDK · Jul 2, 2014

Fjodor2001 said:
Note that the LinkedIn entry from August 2013 I referred to mentioning IVR was for Icelake, not Skylake. So I don't think it is too late to remove the IVR in Icelake. That is if the LinkedIn entry even matches reality to begin with.

Its shown before that Intel adds and removes technology with different uarchs. Specially when its deemed as trials. Hyperthreading was a good example. It was skipped from Core 2, because they couldnt get all the results from Hyperthreading before Core 2 was in a locked phase.

The same applies with the FIVR. Hence the reemerge in Icelake since its deemed a success.

The (F)IVR as a concept was first demoed in 2005 on a Pentium-M.

Homeles · Jul 2, 2014

Fjodor2001 said:
Perhaps, but I think Homeles would only agree to that if the information provided there matches his opinion.

And what would that opinion be, exactly?

Skylake Core Configs and TDPs

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