Intel Skylake / Kaby Lake

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tenks

Senior member
Apr 26, 2007
287
0
0
Interesting analysis.



https://trove.com/a/Intel-Corps-Sky...Line-for-Unlocked-Mainstream-Processors.ksxUO

Core i7 5820K's lower price relative to SB-E/IB-E hexa-cores is already an indication of this. Perhaps Intel will keep pushing the limits of 4C/8T mainstream chips (Kabylake, Cannonlake, etc.) with >4GHz clocks and IPC bumps but they might also bring Skylake-E closer to mainstream. It's also their chance to one up AMD in case Summit Ridge is more than smoke and mirrors.

woa nice find. damn...this makes things even more confusing for my purchase plans...

I wonder if this means we'll finally get a mainstream 6core part with IGPbut rather on the HEDT platform instead. Interesting.
 

JM Popaleetus

Senior member
Oct 1, 2010
372
20
81
heatware.com
I realize it is somewhat off topic, but I'm asking here as it has become the focus of this thread. Does Haswell-E scale with memory speeds as dramatically as Skylake does?

I'm returning the kit in my sig due to errors, and because of Skylake's release, DDR4 prices have fallen again. So I'm pondering going with DDR4-2800 or 3000.
 

SammichPG

Member
Aug 16, 2012
171
13
81
From AT review:

"What Skylake does is separate the clock domains altogether, so we get a full range of BCLK adjustments for the processor from 100 MHz to 200-300 MHz in 1 MHz increments. Some motherboard manufacturers have extra components on board to either boost that range to 650 MHz+, or add a finer BCLK adjustment system to allow for 0.0625 MHz steps instead."

I read that part, but in the oc section they went with multiplier OC if I remember well, using bclk could have some impact on performance.

Well let's wait and see, since dual cores are different dies and they could lock it again.
 

Deders

Platinum Member
Oct 14, 2012
2,401
1
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I read that part, but in the oc section they went with multiplier OC if I remember well, using bclk could have some impact on performance.

Well let's wait and see, since dual cores are different dies and they could lock it again.

Overclocking the motherboard and cache with Bclk will definitely have an impact on performance. as they found at Overclock3D.

Some of these graphss show phenomenal performance increases: http://www.overclock3d.net/reviews/cpu_mainboard/intel_skylake_i5_6600k_i7_6700k_1151_z170_review/8

I have a feeling it is why my current lynnfield system has no problem with Arkham Knight or Watchdogs when users with newer more powerful systems with fixed Bclk reported they were unplayable.

The reason Skylake has the ability to overclock with the Blck is because the fivr is no longer on the CPU. Intel have also said that they will keep it that way until the generation after Kaby lake.
 
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phillyman36

Golden Member
Jun 28, 2004
1,762
160
106
They were in stock on release day in the UK and still are. I received mine on Thursday

SHOW OFF lol
Seriously i have been refreshing both Newegg and Amazon. Newegg sent me the email notification at like 11pm Dion250 posted the info around 9:30pm. Thats way too long and time period for it to sell out so refreshing is what i will be doing all day long.
 

Sweepr

Diamond Member
May 12, 2006
5,148
1,142
131
Lenovo announced Mobile Xeon laptops:

http://news.lenovo.com/news+releases/lenovo-thinkpad-p50-p70.htm

If it indeed has GT4e,which it should although it also has a dGPU, then we might have some 35 or 45W GT4 benchmarks in Q4.

Not only Skylake Xeon but also a new Quadro dGPU, PCIe SSD, insane amount of ECC DDR4 memory and Alpine Ridge. They got the whole package there.

The first Skylake laptops are Lenovo's Thinkpad P50 and P70 graphics workstations (Xeon E3-1500M v5)



Your chance to get a laptop with Intel’s newest Skylake CPU is almost here. On Monday at the Siggraph show in Los Angeles, Calif., Lenovo announced two new mobile workstations stocked with the 6th-gen mobile chip and a dream checklist of advanced features.

How next-gen? Think up to 64GB of DDR4 RAM, true PCIe SSD performance, Thunderbolt 3 and true USB 3.1 too. There’s even a new Nvidia GPU.

Of course, the new ThinkPad P50 and ThinkPad P70 both pack Intel’s Xeon E3-1500M v5 CPUs, based on the Skylake microarchitecture. We reviewed the desktop Skylake chips last week, or if you’re into the brevity thing, you can just read this short FAQ. For mobile users, beyond saying unlocked, overclockable versions would be available, Intel has been mum.
 

SammichPG

Member
Aug 16, 2012
171
13
81
Overclocking the motherboard and cache with Bclk will definitely have an impact on performance. as they found at Overclock3D.

Some of these graphss show phenomenal performance increases: http://www.overclock3d.net/reviews/cpu_mainboard/intel_skylake_i5_6600k_i7_6700k_1151_z170_review/8

I have a feeling it is why my current lynnfield system has no problem with Arkham Knight or Watchdogs when users with newer more powerful systems with fixed Bclk reported they were unplayable.

The reason Skylake has the ability to overclock with the Blck is because the fivr is no longer on the CPU. Intel have also said that they will keep it that way until the generation after Kaby lake.


Well those bclk clocks look very promising and with 1mhz granular increases you could reach voltage and thermal limits on basically any skylake cpu.

Assuming that dual cores and non K quads are left untouched we should be back to the e2140 and e5200 days, but I really doubt that this will be the case, what's the point of K parts then?

What's their incentive for not forcing people into K parts when it's been successful so far?
 

podspi

Golden Member
Jan 11, 2011
1,982
102
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Well those bclk clocks look very promising and with 1mhz granular increases you could reach voltage and thermal limits on basically any skylake cpu.

Assuming that dual cores and non K quads are left untouched we should be back to the e2140 and e5200 days, but I really doubt that this will be the case, what's the point of K parts then?

What's their incentive for not forcing people into K parts when it's been successful so far?

Nothing, but we can hope. If the K parts are binned better and are the only ones eligible for the OC insurance... there could be some value there.
 

Deders

Platinum Member
Oct 14, 2012
2,401
1
91
Well those bclk clocks look very promising and with 1mhz granular increases you could reach voltage and thermal limits on basically any skylake cpu.

Assuming that dual cores and non K quads are left untouched we should be back to the e2140 and e5200 days, but I really doubt that this will be the case, what's the point of K parts then?

What's their incentive for not forcing people into K parts when it's been successful so far?

The K parts have the added bonus of an unlocked multiplier for extra flexibility. I would hope they would be binned higher too.
 

SammichPG

Member
Aug 16, 2012
171
13
81
The K parts have the added bonus of an unlocked multiplier for extra flexibility. I would hope they would be binned higher too.

Since you can increase bclk by 1mhz it's effectively the same as unlocked multiplier when going for maximum clocks (no fixed straps like in the socket 775 era), the only downside is that you get higher idle clocks but most overclockers won't care and I doubt it makes a huge difference in power consumption.

There's no competitive pressure on Intel to be consumer friendly, I don't have high hopes, this is the company that removed bins overclocking on non k parts in the passage from Ivy to Haswell.
 

sxr7171

Diamond Member
Jun 21, 2002
5,079
40
91
Overclocking the motherboard and cache with Bclk will definitely have an impact on performance. as they found at Overclock3D.

Some of these graphss show phenomenal performance increases: http://www.overclock3d.net/reviews/cpu_mainboard/intel_skylake_i5_6600k_i7_6700k_1151_z170_review/8

I have a feeling it is why my current lynnfield system has no problem with Arkham Knight or Watchdogs when users with newer more powerful systems with fixed Bclk reported they were unplayable.

The reason Skylake has the ability to overclock with the Blck is because the fivr is no longer on the CPU. Intel have also said that they will keep it that way until the generation after Kaby lake.

I'm confused. The NB/Bclk was underclocked in that example. The thing I think that helped was the use of very fast DDR4.
 

sxr7171

Diamond Member
Jun 21, 2002
5,079
40
91
Since you can increase bclk by 1mhz it's effectively the same as unlocked multiplier when going for maximum clocks (no fixed straps like in the socket 775 era), the only downside is that you get higher idle clocks but most overclockers won't care and I doubt it makes a huge difference in power consumption.

There's no competitive pressure on Intel to be consumer friendly, I don't have high hopes, this is the company that removed bins overclocking on non k parts in the passage from Ivy to Haswell.

Let's be thankful that such a thing as K parts even exists.
 

Deders

Platinum Member
Oct 14, 2012
2,401
1
91
I'm confused. The NB/Bclk was underclocked in that example. The thing I think that helped was the use of very fast DDR4.

"Putting everything together we settled with a 200 BCLK tied into a 24 multiplier giving us 4.8GHz with 3600MHz memory and 4.4GHz cache."
 

sxr7171

Diamond Member
Jun 21, 2002
5,079
40
91
"Putting everything together we settled with a 200 BCLK tied into a 24 multiplier giving us 4.8GHz with 3600MHz memory and 4.4GHz cache."

So back to stock Bclk. But the video you linked had him at 189MHz and 25 multiplier. That is an underclock of the Bclk so I don't know what he meant. So far no examples of a 200+ Bclk.

If anything his results stem from fast memory.

I've been itching for this upgrade for a year. Ultimately this upgrade depends entirely on springing for insanely expensive 3600MHz DDR4. Maybe $350 RAM.
 

CakeMonster

Golden Member
Nov 22, 2012
1,428
535
136
I'm confused about cache being a separate speed? Is this similar to Uncore on Haswell? My head hurts with all the OC parameters except the obvious CPU/Mem speeds. Is this new, or is there a glossary somewhere?
 

Nothingness

Platinum Member
Jul 3, 2013
2,769
1,429
136
AVX512 is E5/E7/KNL only as far as I know.
Do you have a link for that? I missed that info it seems, I thought all Xeon would have it (though it's understandable a mobile Xeon wouldn't have it given the power this will surely draw).
 

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
106
Not at hand, I can try look for it if its important for you.

Its over a year ago since the news was settled on it. E3 also comes from the same die as mobiles and desktops.
 
Mar 10, 2006
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Do you have a link for that? I missed that info it seems, I thought all Xeon would have it (though it's understandable a mobile Xeon wouldn't have it given the power this will surely draw).

It's a "mobile Xeon" which is essentially based on client silicon. I don't expect it to have AVX-512.
 
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