Intel Skylake / Kaby Lake

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Sweepr

Diamond Member
May 12, 2006
5,148
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Is this a real thing with the uarch or something you just made up?

Kaby Lake-U sustains higher clocks than Skylake-U, especially when both the CPU cores and graphics (iGPU) are taxed simultaneously, that's a fact.

NotebookCheck said:
Even though the HD Graphics 520 successor is still equipped with just 24 Execution units (EUs) and the clocks did not change, either (i7-6500U/i7-7500U: up to 1050 MHz), Intel was able to improve the performance considerably: The gaming performance is 20-30 percent higher on average, so the performance gains are even higher than the synthetic benchmarks indicated.

http://www.notebookcheck.net/Kaby-Lake-Core-i7-7500U-Review-Skylake-on-Steroids.172692.0.html

ComputerBase (Translated) said:
Both in Counter-Strike: Global Offensive and in Unravel, the HD Graphics 620 in the Core i7-7500U after half hour load still sustains 1,000 to 1.050 MHz. Maximum possible is 1.050 MHz. So far, no tested U-processor system based on Skylake in the editorial staff managed that, the clock rates fell to 850 to 950 MHz.
 
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jana519

Senior member
Jul 12, 2014
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Kaby Lake-U sustains higher clocks than Skylake-U, especially when both the CPU cores and graphics (iGPU) are taxed simultaneously, that's a fact.

On mobile/NUC, OK sure. On the desktop, there's no difference except for clockspeeds.
 
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Sweepr

Diamond Member
May 12, 2006
5,148
1,143
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On mobile/NUC, OK sure. On the desktop, there's no difference except for clockspeeds.

But that's the context of the original post you quoted. The new NUC is using a mobile Kaby Lake-U 28W. Mobile is no different from desktops, process improvement allowing for higher clocks + updated media engine and Optane support.
 
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jana519

Senior member
Jul 12, 2014
782
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But that's the context of the original post you quoted. The new NUC is using a mobile Kaby Lake-U 28W.

I see, thanks.

Mobile is no different from desktops, process improvement allowing for higher clocks + updated media engine and Optane support.

OK, my mistake was confusing NUC with mobile. So essentially, what KL did with NUC was raise the TDP, clockspeed, and improve the drivers. There's no architecture improvement that allows the CPU and iGPU core to run faster when both are under load. Which I misread your statement to mean. Right, got it.
 

jpiniero

Lifer
Oct 1, 2010
15,176
5,717
136
No, that requires change to the die.

That's right, but they are making changes to the die. According to the leak, the 4+2 model is a tad bigger (126 vs 123 mm2) and of course they are doing the 6 core model.

So they are doing something other than adding the 6 core model. But nothing to the GPU and likely nothing to the CPU cores themselves.
 

mikk

Diamond Member
May 15, 2012
4,245
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Maybe they have to add HDMI 2.0 but forget about FIVR or any other major change because Coffe Lake is Skylake µarch. FIVR won't come before Icelake.
 
Reactions: Arachnotronic
Mar 10, 2006
11,715
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That's right, but they are making changes to the die. According to the leak, the 4+2 model is a tad bigger (126 vs 123 mm2) and of course they are doing the 6 core model.

So they are doing something other than adding the 6 core model. But nothing to the GPU and likely nothing to the CPU cores themselves.

FIVR is a big, high risk change for what is supposed to be a low risk project intended to make sure Intel has new products every year.

I just don't see it.
 

DrMrLordX

Lifer
Apr 27, 2000
22,035
11,620
136
Coffee Lake is based on a 14nm derivative. Not clear if it is 14nm+ or 14nm++ yet.

Yeah that's what I thought. The post to which I was replying seemed to be hoping for a respin of Coffeelake on 10nm via process shrink. That would be unlike Intel to do such a thing.

It seems like a lot of people would believe that intel would rather sell $100 i3's than $64 HT enabled Pentiums, though...

If they can sell just as many i3s, then wouldn't they?
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
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If they can sell just as many i3s, then wouldn't they?

I don't know what Intel would do. I just think greed as a motive is a bit too simple an explanation for what Intel does, given that we have $64 HT enabled Pentium chips.
 

jpiniero

Lifer
Oct 1, 2010
15,176
5,717
136
FIVR is a big, high risk change for what is supposed to be a low risk project intended to make sure Intel has new products every year.

I just don't see it.

Skylake originally had it, and we can be pretty sure Cannonlake has it (due to the TDP increase to 5.2 W). Maybe I am misinterpreting the benefits, but I would think that for 6 core to work in mobile you would want it.
 

Ajay

Lifer
Jan 8, 2001
16,094
8,109
136
Skylake originally had it, and we can be pretty sure Cannonlake has it (due to the TDP increase to 5.2 W). Maybe I am misinterpreting the benefits, but I would think that for 6 core to work in mobile you would want it.

IIRC, didn't the Israeli team design Skylake? They were against including an FIVR. Also, I doubt 6 cores is for anything other than an 'H' or possibly 'X' model SKU.
 

Gorbugal

Member
Jun 9, 2016
29
7
36
I did appreciate the fact that we will have 10nm from Intel in any form this year. Apparently this bothers you for some reason, well would you look at that.

The technical news was actually mildly interesting, it was very clearly the "Haters got a nice slap in the face by Intel" that I was mocking. Who talks this way in a (presumably) adult discussion about CPUs?

Nothing about 10nm news from Intel would "bother" me. Why would it? I'm not emotionally invested in any for-profit companies success or failure. That would be pathetic.
 

VirtualLarry

No Lifer
Aug 25, 2001
56,554
10,171
126
7th Generation Core (Kaby Lake-S) CPUs available at Newegg

http://promotions.newegg.com/intel/...gg.com/intel/16-8997/1920x360.jpg&icid=384108

Core i5 and Core i7 on sale, Core i3 to be released January 16.

Harumph, no Pentium (with HT) to be found... G4400 Pentium WAS available at Skylake launch. I know, because I bought two of them to OC in my new ASRock Z170 Pro4S boards.

Edit: Actually, when I bought mine, it might have been closer to Oct. 2015, than Aug. 2015. I would have to check my old threads, or my old posts in this thread.
 
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chucky2

Lifer
Dec 9, 1999
10,016
36
86
However support is provided, it will apparently be 2.0a with HDR.

I mean, it's good there's support and all for HDMI 2.0, but really, it sounds to me like they could have done the same with existing Skylake CPUs...just given the mobo manufacturers a mobo reference spec with Skylake and HDMI 2.0.

With the time from Skylake to Kaby Lake, and all the resources at Intel's disposal, this just seems like...ridiculous that something like HDMI 2.0a or b isn't supported, natively. I'm still fine with having waited for Kaby Lake, and I might just go ahead and wait for Kaby Lake-E (personal life for next few months means no gaming, desktop rig will likely hold out for general use until then), but really this seems like Intel just being flat out lazy with Kaby Lake.

Next they'll give us Cannonlake for tablet mobile?, no Cannonlake for desktop, but then we get Coffee Lake which will bring us what? 6C?

To me it seems like if you're not an overclocker or extreme gamer, you just buy at the Architecture point and then forget about anything Intel comes out with until the next Architecture point. Sorta sad...
 

jana519

Senior member
Jul 12, 2014
782
100
106
G4400 Pentium WAS available at Skylake launch. I know, because I bought two of them to OC in my new ASRock Z170 Pro4S boards.

Edit: Actually, when I bought mine, it might have been closer to Oct. 2015, than Aug. 2015. I would have to check my old threads, or my old posts in this thread.

Wasn't the G4400 available at launch? It was the G4500 that came out a month later IIRC.
 

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
106
Harumph, no Pentium (with HT) to be found... G4400 Pentium WAS available at Skylake launch. I know, because I bought two of them to OC in my new ASRock Z170 Pro4S boards.

Edit: Actually, when I bought mine, it might have been closer to Oct. 2015, than Aug. 2015. I would have to check my old threads, or my old posts in this thread.

It was stated Pentiums, 7350k and Celerons will launch a little later.

You can buy them in Europe.

Example:
https://www.proshop.de/CPU/Intel-Pe...eizhals&utm_medium=cpc&utm_campaign=pricesite
https://www.proshop.dk/CPU/Intel-Pe...Hz-Intel-LGA1151-2-kerner-Intel-Boxed/2574825
 
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jpiniero

Lifer
Oct 1, 2010
15,176
5,717
136
IIRC, didn't the Israeli team design Skylake? They were against including an FIVR. Also, I doubt 6 cores is for anything other than an 'H' or possibly 'X' model SKU.

Yeah, and H is mobile. IIRC, the Skylake architect guy interview I remember reading said that Skylake was majorly redesigned (read: gimped) twice and one of the revisions dropped the FIVR since they couldn't get Skylake down to 4.5 W. And if they had more time they would have put it back on the other models.
 

Sweepr

Diamond Member
May 12, 2006
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SAAA

Senior member
May 14, 2014
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