Intel Skylake / Kaby Lake

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Dufus

Senior member
Sep 20, 2010
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Some users just assume that if I could screw up by testing out the latest BIOS, that I somehow wouldn't know enough to flash it back to one I knew worked.

Well it's easy enough to run the 0x76 microcode update without flashing the BIOS should someone with a non-k bclk OC'd CPU want to try. Microcodes are supposed to be volatile so it would be interesting to see what happens.

It depends if he can roll back BIOS far enough for a new microcode.

He did, to ver 0x31.

I guess MS have their reasons for not running the latest versions but I don't know what they are.
 

Sweepr

Diamond Member
May 12, 2006
5,148
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Intel could very well spoil AMD's party @ late 2016/early 2017 by fully supporting BCLK OC on non-K Kabylake-S. Here's hoping that's what they're planning.
 
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Sweepr

Diamond Member
May 12, 2006
5,148
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PCLabs reviews the Surface Pro 4 (Core i5-6300U)

Say what you want about the desktop SKUs, but Skylake-U brought some significant improvements:

- CPU





- iGPU

Same node, same number of EUs (24) and slightly lower clocks yet HD 520 still trounces HD 5500 in some games. Too bad Haswell is not included.







http://pclab.pl/art68080.html

Will be interesting to see how much Kabylake-U can improve on this if they keep the same iGPU config (24 EUs, 192 SPs for GT2).
 
Aug 11, 2008
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Intel could very well spoil AMD's party @ late 2016/early 2017 by fully supporting BCLK OC on non-K Kabylake-S. Here's hoping that's what they're planning.

I dont see it happening. They want to guard the price premium for the K models too desperately. Now if they would bring out an "anniversary edition analogue" overclockable i3, that might make sense.

But I cant see them allowing overclocking i5 and i7. If they did what would be the point of the K models?
 

Sweepr

Diamond Member
May 12, 2006
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I dont see it happening. They want to guard the price premium for the K models too desperately. Now if they would bring out an "anniversary edition analogue" overclockable i3, that might make sense.

But I cant see them allowing overclocking i5 and i7. If they did what would be the point of the K models?

I expect higher core count Cannonlake-S models to take over Core i5/i7 'K' segments. As for Kabylake-S, unlocked models could offer much higher base clocks and maybe include Intel's Performance Tuning Protection Plan (no extra cost). Even if Summit Ridge underperforms, which wouldn't be a surprise given AMD's record, I don't think they will stand still.
 

PPB

Golden Member
Jul 5, 2013
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Intel could very well spoil AMD's party @ late 2016/early 2017 by fully supporting BCLK OC on non-K Kabylake-S. Here's hoping that's what they're planning.
That is nonsense. The only thing you spoil doing that is your credibility as a company.
Shipping something without said feature, having that feature enables unwillingly by mobo oems, shutting it down because it hurts your segmentation, having it back to hurt your competition. Yeah, great secuence going in there.


What you should wish is to intel backtrack now and stop shafting their customers today, people already made purchase decisions based on a feature they see now removed. That is complete BS.
 

Sweepr

Diamond Member
May 12, 2006
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That is nonsense. The only thing you spoil doing that is your credibility as a company.

How can you be sure that's not one of the reasons why they decoupled BCLK base clock from other clock domains?



Maybe it wasn't planned to debut with Skylake but later on.

Shipping something without said feature, having that feature enables unwillingly by mobo oems, shutting it down because it hurts your segmentation, having it back to hurt your competition. Yeah, great secuence going in there.

When you can't even read temps properly and OEMs were trying to enable OCable non-Z MBs that might not deal well with >95W power draw I think there's more to it than just 'product segmentation'.

Intel said:
“The latest update provided to partners includes, among other things, code that aligns with the position that we do not recommend overclocking processors that have not been designed to do so. Additionally, Intel does not warranty the operation of the processor beyond its specifications.”


What you should wish is to intel backtrack now and stop shafting their customers today, people already made purchase decisions based on a feature they see now removed. That is complete BS.

Honestly it was always a 'hack', not a feature, despite what marketing from MB manufacturers said.

And sorry to burst the bubble of those thinking Intel won't react if the competition shows up with a competitive product for a similar price. Either new 'K' CPUs, improved BCLK overclock capability, higher core count for mainstream or more affordable HEDT, they have plenty of ways to respond.
 
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VirtualLarry

No Lifer
Aug 25, 2001
56,570
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Maybe it wasn't planned to debut with Skylake but later on.

Honestly it was always a 'hack', not a feature, despite what marketing from MB manufacturers said.

Early marketing slides on Skylake architecture, indicated support for BCLK OCing, it wasn't clear on those early slides, that it was only really intended for "K" SKUs, IMHO.
 

jpiniero

Lifer
Oct 1, 2010
16,203
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What you should wish is to intel backtrack now and stop shafting their customers today, people already made purchase decisions based on a feature they see now removed. That is complete BS.

Intel never promised the feature; mobo makers did.
 
Aug 11, 2008
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That is nonsense. The only thing you spoil doing that is your credibility as a company.
Shipping something without said feature, having that feature enables unwillingly by mobo oems, shutting it down because it hurts your segmentation, having it back to hurt your competition. Yeah, great secuence going in there.


What you should wish is to intel backtrack now and stop shafting their customers today, people already made purchase decisions based on a feature they see now removed. That is complete BS.

Well, anybody that bought non-K skylake expecting overclocking not to be nerfed eventually was living in dreamland anyway. Intel didnt "shaft" their customers, because they never officially sanctioned overclocking on non-K chips. If anybody "shafted" their customers it was the mobo makers trying to push out a few sales before intel eventually nerfed it.

Now would in be "nice" of intel to allow bclock overclocking, certainly, but they just as certainly arent backtracking or shafting anyone taking away something they never officially approved in the first place.
 

jpiniero

Lifer
Oct 1, 2010
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Same node, same number of EUs (24) and slightly lower clocks yet HD 520 still trounces HD 5500 in some games. Too bad Haswell is not included.

Those are oldish games though. Rise of the Tomb Raider for instance, the 940M is twice as fast than the HD 530 and the game is unplayable on the 530 even at the bare min. And I think that's DDR3, the 950M is 60 fps as the bare min settings.

http://www.notebookcheck.net/Rise-of-the-Tomb-Raider-Notebook-Benchmarks.158810.0.html
 

Sweepr

Diamond Member
May 12, 2006
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Those are oldish games though. Rise of the Tomb Raider for instance, the 940M is twice as fast than the HD 530 and the game is unplayable on the 530 even at the bare min. And I think that's DDR3, the 950M is 60 fps as the bare min settings.

http://www.notebookcheck.net/Rise-of-the-Tomb-Raider-Notebook-Benchmarks.158810.0.html

I'd take those numbers with a grain of salt, HD 4600 >30% faster than HD 5500 and barely any improvement from HD 520 (vs Haswell)?

Some results from the first Tomb Raider @ NBC (1366x768 Normal Preset FX AF 4x)
HD 4400: 18.1 FPS
HD 5500: 30.4 FPS
HD 520: 40.8 FPS
 
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jpiniero

Lifer
Oct 1, 2010
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I'd take those numbers with a grain of salt, HD 4600 >30% faster than HD 5500 and barely any improvement from HD 520 (vs Haswell)?

The 4600 is probably from the 4790K while the 5500 is probably one of the 15W parts. So those results shouldn't seem that out of the ordinary. My point is driver optimizations matter. Look at the 750M, it's much slower than the 940M too.
 

Dufus

Senior member
Sep 20, 2010
675
119
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When you can't even read temps properly and OEMs were trying to enable OCable non-Z MBs that might not deal well with >95W power draw I think there's more to it than just 'product segmentation'.

Honestly it was always a 'hack', not a feature, despite what marketing from MB manufacturers said.
Seriously?

Are you not aware K chips overclock bclk just fine without any of the hack problems? 6600k @ 370MHz bclk where temps, AVX2 instructions work just fine.

Are you not aware the non-k chips are locked from going above ~103MHz but when the lock is hacked they run stable at high bclks and that it is the hack method which causes the problems with power management and not the increased bclk.

I don't understand why you think Intel would want bclk unlocked on all SKU's especially in light of what has recently happened..
 

coercitiv

Diamond Member
Jan 24, 2014
7,143
16,572
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Intel never promised the feature; mobo makers did.
Indeed, an Intel representative just twitted happily about it, and indirectly hinted the feature is here to stay.



It should be clear by now that even Intel is divided on this, with inside forces pulling in opposite directions. I strongly believe mobo makers looked for some kind of signal from Intel (or lack of reaction) before boasting BCLK OC for non-K processors. Unfortunately Intel was undecided.
 
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ShintaiDK

Lifer
Apr 22, 2012
20,378
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Seriously?

Are you not aware K chips overclock bclk just fine without any of the hack problems? 6600k @ 370MHz bclk where temps, AVX2 instructions work just fine.

Are you not aware the non-k chips are locked from going above ~103MHz but when the lock is hacked they run stable at high bclks and that it is the hack method which causes the problems with power management and not the increased bclk.

I don't understand why you think Intel would want bclk unlocked on all SKU's especially in light of what has recently happened..

The lock isn't hacked. The mobo makers uses a another clock generator for non K. That is also why you end up with a galore of issues with non K compared to K.
 

Sweepr

Diamond Member
May 12, 2006
5,148
1,143
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I don't understand why you think Intel would want bclk unlocked on all SKU's especially in light of what has recently happened..

Sorry but your own post indicates the issues don't come from Intel's implementation. They decoupled BCLK base clock from other clock domains with Skylake in the first place. So there you go, I think there might be other reasons for this move, but they could enable BCLK OCs with across the Kabylake lineup if they want to.

ShintaiDK said:
The lock isn't hacked. The mobo makers uses a another clock generator for non K. That is also why you end up with a galore of issues with non K compared to K.

This.

This one is very fishy here. Why does the HD520/530 is faster than Iris 5200 and Geforce 940M?

CPU limited? Or maybe it's one of the few games where Gen 9 sees a massive performance bump.
 

Dufus

Senior member
Sep 20, 2010
675
119
101
The lock isn't hacked. The mobo makers uses a another clock generator for non K. That is also why you end up with a galore of issues with non K compared to K.
This is nonsense ShintaiDK, the reason for "the galore of issues" is due to power management not being initialized. You can produce the same symptoms with Haswell by not initializing power management. MCHBAR +0x5DA8, look it up.
 

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
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This is nonsense ShintaiDK, the reason for "the galore of issues" is due to power management not being initialized. You can produce the same symptoms with Haswell by not initializing power management. MCHBAR +0x5DA8, look it up.

http://anandtech.com/show/10021/skylake-overclocking-regular-cpu-bclk-overclocking-is-being-removed

So again, move forward to November 2015, when we wrote about Supermicro working around this 3% limitation using an external clock generator and modified firmware. It essentially opened the floodgates – not only could you overclock by adjusting the base frequency on a non Z-series chipset, but also on processors that were previously locked or only moved 3%.
 

crashtech

Lifer
Jan 4, 2013
10,662
2,269
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Seems the current argument is over semantics. One could call the utilization of the external clock source a sort of "hack," I think.
 

AtenRa

Lifer
Feb 2, 2009
14,003
3,362
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How can you be sure that's not one of the reasons why they decoupled BCLK base clock from other clock domains?



Maybe it wasn't planned to debut with Skylake but later on.



When you can't even read temps properly and OEMs were trying to enable OCable non-Z MBs that might not deal well with >95W power draw I think there's more to it than just 'product segmentation'.






Honestly it was always a 'hack', not a feature, despite what marketing from MB manufacturers said.

And sorry to burst the bubble of those thinking Intel won't react if the competition shows up with a competitive product for a similar price. Either new 'K' CPUs, improved BCLK overclock capability, higher core count for mainstream or more affordable HEDT, they have plenty of ways to respond.

For those telling us that Kaby will have BCLK OC for every CPU, just have a look at the platform overlook above,

Enhanced Full Range BCLK Overclocking 2

2. Unlocked features are present with select chipsets and processor combinations.
Dont expect Intel to let you OC non K processors with Kabylake.
 
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