Intel Skylake / Kaby Lake

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Aug 11, 2008
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Fudzilla speculates that Kaby Lake-X (4C/8T) is LGA 2066, same as Skylake-X ('Skylake-E'):



www.fudzilla.com/news/processors/40949-skylake-x-10-comes-in-q2-17

If true, they could be pushing some insane stock clocks here (>95W TDP).

Core i7-6770HQ Cinebench R15 OpenGL Result (DDR4-2800)



Almost twice typical HD 530 (45W TDP Skylake-H) performance.


If true, that really sucks. Pretty much dashes any hopes of a high performance hex core on the mainstream platform, I would think.
 
Mar 10, 2006
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If true, that really sucks. Pretty much dashes any hopes of a high performance hex core on the mainstream platform, I would think.

There won't be a hex core Kaby Lake on the mainstream platform. Whether they bring it with Cannonlake is anyone's guess.

I think though if hex core is your thing, go with HEDT. The performance/clock isn't much lower and overclocking should bring you to nice speeds. You also get additional PCIe lanes, higher quality boards (on average, anyway), and so on.

My experience with a 6800K has been very nice so far. Worth every penny.
 

Sweepr

Diamond Member
May 12, 2006
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Just saw it too. Some interesting bits from the article:



Intel dropped Core m5/m7 naming. High-end Kaby Lake-Y will be called Core i5/i7.



Apollo Lake iGPUs will be called HD Graphics 500/505. Up to 18 EUs just like that very first Apollo Lake-I leak indicated.





Here we have the specs for some Kaby Lake-U models (above), and their Skylake-U counterparts (below) to compare.

Comparing Core i7-7500U to Core i7-6500U, base clock is up by 200 MHz while Turbo gets a rather massive 500 MHz boost. Now there's DDR4-2133 support as well.





Kaby Lake-Y above vs Skylake-Y below. Base gets the usual 100 MHz bump, but Turbo surprises here once again, 400-500 MHz higher.
 

Sweepr

Diamond Member
May 12, 2006
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NBC just posted their initial 15W Bristol Ridge analysis, and Skylake-U* stack up really well. Intel's significant CPU performance lead is still there, and HD 520 was faster in 8 out of 14 games tested**. In the 6 games it was slower, 3 included HD 520 results with single-channel vs Bristol Ridge with dual-channel. Not to mention the website most likely picked results from old reviews for the Intel systems, instead of updating them with newer drivers.

Power consumption for the 15.6'' AMD system was also higher than a comparable 15.6'' Intel system - up to 37.6W vs 32W.

www.notebookcheck.com/Bristol-Ridge-im-Test-AMDs-A10-9600P-gegen-die-Konkurrenz.168172.0.html

*Bristol Ridge's competitor is actually Kaby Lake-U, not Skylake-U
**Iris 540 is up to twice as fast.
 

Abwx

Lifer
Apr 2, 2011
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NBC just posted their initial 15W Bristol Ridge analysis, and Skylake-U* stack up really well. Intel's significant CPU performance lead is still there, and HD 520 was faster in 8 out of 14 games tested**. In the 6 games it was slower, 3 included HD 520 results with single-channel vs Bristol Ridge with dual-channel. Not to mention the website most likely picked results from old reviews for the Intel systems, instead of updating them with newer drivers.

Power consumption for the 15.6'' AMD system was also higher than a comparable 15.6'' Intel system - up to 37.6W vs 32W.

www.notebookcheck.com/Bristol-Ridge-im-Test-AMDs-A10-9600P-gegen-die-Konkurrenz.168172.0.html

*Bristol Ridge's competitor is actually Kaby Lake-U, not Skylake-U
**Iris 540 is up to twice as fast.

The iris 540 score is from a NUC that pump 29W at the CPU + GPU level, wonder what such a PC is doing in a laptop comparison...

http://www.notebookcheck.com/Test-Intel-NUC-6i5SYH-Mini-PC.164923.0.html

 

mikk

Diamond Member
May 15, 2012
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NBC just posted their initial 15W Bristol Ridge analysis, and Skylake-U* stack up really well. Intel's significant CPU performance lead is still there, and HD 520 was faster in 8 out of 14 games tested**. In the 6 games it was slower, 3 included HD 520 results with single-channel vs Bristol Ridge with dual-channel. Not to mention the website most likely picked results from old reviews for the Intel systems, instead of updating them with newer drivers.

Power consumption for the 15.6'' AMD system was also higher than a comparable 15.6'' Intel system - up to 37.6W vs 32W.

www.notebookcheck.com/Bristol-Ridge-im-Test-AMDs-A10-9600P-gegen-die-Konkurrenz.168172.0.html

*Bristol Ridge's competitor is actually Kaby Lake-U, not Skylake-U
**Iris 540 is up to twice as fast.



I have to add that once again AMD does much better in 3dmark, so never trust these 3dmark comparisons from AMD in their marketing slides, it doesn't show the real picture for real world gaming.
 

Sweepr

Diamond Member
May 12, 2006
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Kaby Lake Geekbench Results

- Core i7-7500U
Single-Core Score: 3577
Multi-Core Score: 7532

https://browser.primatelabs.com/geekbench3/7176639

Highest Windows 32-bit Core i7-6500U score
Single-Core Score: 3370
Multi-Core Score: 6944

https://browser.primatelabs.com/geekbench3/6279511

- Core i5-7200U
Single-Core Score: 3261
Multi-Core Score: 6899

https://browser.primatelabs.com/geekbench3/6743793

Highest Windows 32-bit Core i5-6200U score

Single-Core Score: 2996
Multi-Core Score: 6278

https://browser.primatelabs.com/geekbench3/7019355
 

mikk

Diamond Member
May 15, 2012
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Even Skylake was better (15%)


Skylake wasn't 15% better.

https://browser.primatelabs.com/geekbench3/search?dir=desc&q=i7-6500u&sort=score
https://browser.primatelabs.com/geekbench3/search?dir=desc&q=i7-5500u&sort=score


"Even Skylake" is literally wrong because Kabylake is Skylake....in a new stepping. An informed user would expect a bigger gain from a Tock instead of just a new stepping. In reality no one expected more than a small gain due to a 100-200 Mhz clock bump, it was a surprise that Intel increased the Turbo by 300-500 Mhz. If Kabylake is really 10% faster then it is more than we could realistically expect.
 
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Sweepr

Diamond Member
May 12, 2006
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Fuad says Intel is confident Kaby Lake will be a better overclocker than Skylake:

Kaby Lake conjures up two overclocking tricks

Kaby Lake will be a better overclocker. At least this is what Intel is telling its partners right now. The successor to Skylake architecture will have two overclocking enhancements the BCLK aware V/F curve and AVX negative ratio offset.

The BCLK aware V/F curve is an adaptive voltage mode that works with BCLK and its main goal is to achieve higher clock stability.

The AVX negative ratio offset allows excellent control over Intel Turbo Boost Technology while overclocking with increased stability.

Kaby Lake processors will be able to achieve higher frequencies at the same thermal envelope. For example, a 95W TDP Kaby Lake processor will be able to achieve a higher clock than the 95W Skylake. We expect that the successor to Intel Core i7-6700K will get to clock more than 4GHz, but not that much higher. The Turbo clock will be higher.

www.fudzilla.com/news/processors/41048-kaby-lake-has-learned-two-overclocking-tricks

Core i7-6700K has a relatively modest boost clock (+200MHz). Would be nice if they can replicate what they achieved with Kaby Lake-U here, maybe a 100-200 MHz bump to base clocks and 400-500 MHz higher Turbo - something like this:

Core i7-7700K: 4.1 GHz/4.5 GHz (base/Turbo) and 5GHz 24/7 OCs on air.
 

24601

Golden Member
Jun 10, 2007
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Fuad says Intel is confident Kaby Lake will be a better overclocker than Skylake:

Kaby Lake conjures up two overclocking tricks



www.fudzilla.com/news/processors/41048-kaby-lake-has-learned-two-overclocking-tricks

Core i7-6700K has a relatively modest boost clock (+200MHz). Would be nice if they can replicate what they achieved with Kaby Lake-U here, maybe a 100-200 MHz bump to base clocks and 400-500 MHz higher Turbo - something like this:

Core i7-7700K: 4.1 GHz/4.5 GHz (base/Turbo) and 5GHz 24/7 OCs on air.

Making clocks less and less indicative of actual performance is not an "enhancement" for anything other than the marginal increase you get for legacy workloads.

The improved "auto voltage" is nice, but unless and until they actually get it to a point that is superior to stability when just locking a LLC Static voltage it's mostly worthless to the kind of people looking for max stable clocks anyways.
 
Aug 11, 2008
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Fuad says Intel is confident Kaby Lake will be a better overclocker than Skylake:

Kaby Lake conjures up two overclocking tricks



www.fudzilla.com/news/processors/41048-kaby-lake-has-learned-two-overclocking-tricks

Core i7-6700K has a relatively modest boost clock (+200MHz). Would be nice if they can replicate what they achieved with Kaby Lake-U here, maybe a 100-200 MHz bump to base clocks and 400-500 MHz higher Turbo - something like this:

Core i7-7700K: 4.1 GHz/4.5 GHz (base/Turbo) and 5GHz 24/7 OCs on air.

Yea, but doesnt BW-K have new overclocking features as well, and look how that turned out. Still cant even reach HW-E levels. Intel has a bad habit of not being able to live up to their overclocking claims, "ahem" 5ghz devils canyon on air "ahem".

Skylake now seems to overclock to about what, 4.6 or 4.7 fairly reliably, unless one gets an unlucky chip? No matter what gimmicks, I just dont see much headroom above that. Maybe they can refine it to get similar clocks with less voltage and better thermals.
 

Phynaz

Lifer
Mar 13, 2006
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Overclocking is dead. Stock chips are already pushing the limits of the new technology nodes. Look at Skylake, Polaris, Pascal, nothing has any significant headroom left.

The days of buying a low end chip and clocking the heck out of it are gone for good.
 
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VirtualLarry

No Lifer
Aug 25, 2001
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Overclocking is dead. Stock chips are already pushing the limits of the new technology nodes. Look at Skylake, Polaris, Pascal, nothing has any significant headroom left.

The days of buying a low end chip and clocking the heck out of it are gone for good.

Maybe the days of taking a top- or mid-bin chip, and overclocking it PAST the top retail bin, is over. But there's still some ground to be gained from extreme budget overclockers, such as what I did, buying some Skylake Pentiums and OCing to nearly 4.5Ghz using "SKY OC" (BCLK OC on ASRock boards).

Granted, in gaming benchmarks, that only means that I'm just touching the scores of the next-higher chip in the stack, the i3. But it cost me half the price for the CPU, so I consider that somewhat of a win.
 

DrMrLordX

Lifer
Apr 27, 2000
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Overclocking is dead. Stock chips are already pushing the limits of the new technology nodes. Look at Skylake, Polaris, Pascal, nothing has any significant headroom left.

While it's not exactly a "low end" product, Nvidia claims their GTX 1060 can hit clockspeeds in excess of 2 GHz . . .
 

DrMrLordX

Lifer
Apr 27, 2000
22,027
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Maybe the days of taking a top- or mid-bin chip, and overclocking it PAST the top retail bin, is over. But there's still some ground to be gained from extreme budget overclockers, such as what I did, buying some Skylake Pentiums and OCing to nearly 4.5Ghz using "SKY OC" (BCLK OC on ASRock boards).

Granted, in gaming benchmarks, that only means that I'm just touching the scores of the next-higher chip in the stack, the i3. But it cost me half the price for the CPU, so I consider that somewhat of a win.

Could you take an i5-6400 and make it run like a 6700k the same way? Granted, a ~$180 CPU isn't exactly "low-end", but it's the cheapest quad Intel will sell from their current lineup.
 

VirtualLarry

No Lifer
Aug 25, 2001
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Could you take an i5-6400 and make it run like a 6700k the same way? Granted, a ~$180 CPU isn't exactly "low-end", but it's the cheapest quad Intel will sell from their current lineup.

Maybe make it perform like an i5-6600K @ 4.5 (minus the AVX performance, because that gets nerfed due to BCLK OC), but there's no real substitute for HyperThreading.
 

DrMrLordX

Lifer
Apr 27, 2000
22,027
11,606
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Maybe make it perform like an i5-6600K @ 4.5 (minus the AVX performance, because that gets nerfed due to BCLK OC), but there's no real substitute for HyperThreading.

Oh yeh, forgot the HT. And yes AVX gets hosed (boo). Also the iGPU unless Intel fixed that in their driver?

1600 base to 2000 is more than 10%
1700 boost to 2000 is also more than 10%

Too right. 1600->2000 is a 25% increase. 1700->2000 is ~17.6%.
 

Phynaz

Lifer
Mar 13, 2006
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Too right. 1600->2000 is a 25% increase. 1700->2000 is ~17.6%.

Do you know 1060 clocks yet? Have you seen a significant number overclock to 2Ghz?

Sorry, but I'm not going to believe Nvidia, there's way too much evidence that all 14/16nm chips are clocked to the max already.

Like I said, significant overclocking is dead.
 
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