Intel Skylake / Kaby Lake / Coffee Lake Thread - Skylake-X reviews out (page 501)

Discussion in 'CPUs and Overclocking' started by Sweepr, Apr 16, 2015.

  1. Arachnotronic

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    I don't know much about Coffee Lake, not sure if it's just the same SKL cores rehashed again or if it's updated cores in 14nm+.
     
  2. frozentundra123456

    frozentundra123456 Diamond Member

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    Yes, for the K series where you overclock, increasing clockspeed does not mean much if the overclocking frequency stays the same. But for mobile, where you cant overclock, a clockspeed increase is just as good as an ipc increase, assuming it can maintain the higher cloclspeed.
     
  3. NTMBK

    NTMBK Diamond Member

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    Good point, they might just be updating the media decoder to support Dolby HDR or something.
     
  4. Sweepr

    Sweepr Diamond Member

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    Kaby Lake goes official (moving the post to this page). I'm doing some performance comparisons with the data provided by Intel, so stay tuned!

    Intel Kaby Lake: 14nm+, Higher Clocks, New Media Engine

    Year-over-Year Improvements

    [​IMG]


    Performance per Watt

    [​IMG]

    Kaby Lake-Y: ~25% better than Skylake-Y

    14nm+

    New Media Engine

    [​IMG]
    [​IMG]

    [​IMG]

    Speed Shift v2



    Kaby Lake Dual-Core + GT2 Die

    [​IMG]

    Launching Today: Kaby Lake-Y / Kaby Lake-U

    [​IMG]

    [​IMG]


    Benchmarks!

    [​IMG]

    [​IMG]

    www.tomshardware.com/reviews/intel-7th-gen-core-kaby-lake-preview,4728.html
    www.anandtech.com/show/10610/intel-announces-7th-gen-kaby-lake-14nm-plus-six-notebook-skus-desktop-coming-in-january
     
  5. witeken

    witeken Diamond Member

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    What I wonder with this talk about the larger gate pitch, is:

    1) Have they done this to improve yields ("downgraded" their 14nm node after it proved to be a too big leap )? (Seem a bit unlikely because the yieldlearning of this enhanced process probably also took time and as we see it isn't a downgrade, just some changes to improve performance with less focus on density, and hopefully we'll see how much this has changed density, but they're very vague about those numbers since SKL...)

    2) When they disclose their 10nm node and the improvement compared to 14nm, will they compare it to the supposedly less dense 14nm+ to make 10nm look better? (Again I doubt this is the case since they've been talking about 10nm before 14+, just pointing it out.)

    Edit: BTW, the new forum layout is pretty slick, altough it has its plusses and minusses.
     
  6. Sweepr

    Sweepr Diamond Member

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    NotebookCheck already has their Kaby Lake review up. The performance improvement on mobile is better than the last Tock(s) (new architecture) from Intel. Compared to i7-6500U, i7-7500U is:

    Kaby Lake (Core i7-7500U) tested: Skylake on steroids

    - CPU
    14-16% faster @ Cinebench 11.5
    16% faster @ 3DMark 06 CPU
    14-24% faster @ X264
    16-17% faster @ TrueCrypt
    28% faster @ WinRAR

    After 5 minutes of load, i7-7500U can sustain similar clocks to an i7-6600U at 25W mode.

    - iGPU / Gaming
    31% faster @ 3DMark 11 GPU
    39% faster @ 3DMark Fire Strike Graphics
    33% faster @ Just Cause 3 1366x768 Medium
    39% faster @ Bioshock Infinite 1366x768 High
    42% faster @ Battlefield 4 1366x768 High
    51% faster @ Star Wars Battlefront 1366x768 Medium

    http://www.notebookcheck.com/Kaby-Lake-Core-i7-7500U-im-Test-Skylake-auf-Steroiden.172422.0.html

    Now one detail from Intel's slides caught my attention. Kaby Lake-U's HD Graphics 620 scores 339 pts @ 3DMark Time Spy Graphics (DX12). In comparison, a Geforce GTX 950M scores 281 pts according to NotebookCheck.
     
    #7481 Sweepr, Aug 30, 2016
    Last edited: Aug 30, 2016
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  7. witeken

    witeken Diamond Member

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    So it compares even to a Tick?

    We'll probably get more information about 14+ and 10nm at Investor Meeting.. I hope. I always liked Bill Holt's presentation. Wait, didn't he retire? So someone else will do them then, hopefully.
     
  8. ehume

    ehume Golden Member

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  9. mikk

    mikk Platinum Member

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    That's the biggest deal about Kabylake:
    http://www.notebookcheck.com/filead...e/7th_Generation_Intel_Core_Processors_12.jpg
    http://www.notebookcheck.com/filead...e/7th_Generation_Intel_Core_Processors_13.jpg

    10 bit HEVC 50 Mbit/s 60 fps video playback: 3,2 watts vs 16,5 watts .....and it stutters on Skylake


    Even though I'm a bit surprised that the graphics runs easily faster in games, looks like Turbo works better and the new graphics driver helps here and there.
     
  10. Arachnotronic

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    Yep, Holt retired. Sohail Ahmed is likely to give the presentation this year.

    https://newsroom.intel.com/biography/sohail-u-ahmed/
     
  11. nvgpu

    nvgpu Senior member

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    http://www.notebookcheck.net/fileadmin/Notebooks/MSI/CX72-7QL/dxva_kaby.png

    DXVA Checker confirms HEVC Main10 8K hardware decoding & VP9 10bit Profile2 8K hardware decoding support on Kaby Lake.

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

     
    #7486 nvgpu, Aug 30, 2016
    Last edited: Aug 30, 2016
  12. Sweepr

    Sweepr Diamond Member

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    Another look at NotebookCheck results for Kaby Lake-U and Bristol Ridge. They tested i7-7500U and A10-9600P (both 15W) in 12 games, Intel's iGPU was faster in 10. In CPU intensive titles like Diablo III and World of Warships Kaby Lake-U is twice as fast. Now to be fair AMD has a more powerful A10-9800P model with 512 SPs, but even if we add 30% to A10-9600P's results - i7-7500U would still come out on top in most games.

    HD 620 (GT2) delivers around 70-80% the performance of Iris 540 (GT3e), this bodes very well for future Iris 640 (GT3e) parts launching January 2017.

    We also get the first bit of info about how Gen 9 performs in DX12, even if it's a synthetic benchmark.

    - i7-7500U / HD 620 (Intel data):
    3DMark 11 GPU: 1616 pts
    3DMark Time Sky Graphics (DX12): 339 pts

    - Carrizo / R6 Graphics (NBC median scores):
    3DMark 11 GPU: 1510 pts
    3DMark Time Sky Graphics (DX12): 274 pts

    HD 620 is only 7% faster @ 3DMark 11, but 24% faster @ 3DMark Time Spy.
     
  13. Roland00Address

    Roland00Address Golden Member

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    Question do we think we will get a pentium based kabylake core m? Not at first but lets say 3 or 6 months down the road.

    We did with skylake (pentium 4405Y, 1.5 ghz dual core with hyperthreading) but now that apollo lake is coming out is there less need?
     
  14. StinkyPinky

    StinkyPinky Diamond Member

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    Intel have really started to focus on improving their iGPU's in the five years or so, and it's starting to pay off. I really hope AMD hit a home run with Zen, we need competition.
     
  15. Lepton87

    Lepton87 Platinum Member

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    WinRAR results suggests that Kaby Lake had faster ram is that true? What RAM was used in those tests? I'd also like to see Under Volting results to see how much better technically KL really is. It may be that KL works much closer to its potential to achieve those gains making the gains seem less impressive. Of course all of that is largely irrelevant for most buyers because how many people actually under-volt their CPUs? Nonetheless I have seen some very impressive gains in graphics performance from UV that were similar to those of KL. UV made the CPU draw less power and greatly increased the power available to the iGPU.
     
  16. Arachnotronic

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    I don't get it. If Intel has done a really good job improving performance/features while keeping prices pretty much flat even as AMD has not been all that competitive, why exactly do we need competition? This is a legit question.
     
  17. jpiniero

    jpiniero Diamond Member

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    The density decrease is really interesting! I wonder how big the die is...

    Probably, but it'd be hard to find a device with it. Be easier to find an Apollo Lake one.
     
  18. Phynaz

    Phynaz Diamond Member

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    This makes no sense. How far something can be run out of spec says nothing about technology.

    Would you say AMD is technically superior because they have to run their chips with so much voltage to ensure stability?
     
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  19. beginner99

    beginner99 Diamond Member

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    Well 12% higher clock at same power means a 7700k could run at 4.7 Ghz turbo instead of 4.2. But given the leaked Xeon models, I fear intel will go the stupid route and just offer lower TDP. Or maybe the process has no effect on OC potential at all. So I'm skeptical to say the least. Is lack of USB 3.1 in chipset confirmed? that would be a real shame.

    For mobile i say it looks pretty good. Future proof in terms of 4k and codecs and lower power usage or more performance.
     
  20. Azuma Hazuki

    Azuma Hazuki Senior member

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    ...that clanging sound was my jaw hitting the floor. "Why do we need competition?" Seriously?! Have you just not been paying attention to, oh, the last 6,000 years of human history?
     
  21. Qwertilot

    Qwertilot Senior member

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    He's directly referencing the last ~5 years of localised history - where there hasn't been any meaningful competition - and suggesting that the continued improvements do make you wonder how crucial it is here. A fairly legitimate question.

    It'd be awful if Intel got an absolute monopoly on producing CPUs of any kind of course, but there's utterly no prospect of them doing that now.
     
  22. ShintaiDK

    ShintaiDK Lifer

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    Kaby Lake is a massive one for mobile. Utter fantastic product in that regard with large performance benefits. :)
     
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  23. Arachnotronic

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    You haven't actually answered my question.
     
  24. Arachnotronic

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    14nm+ is looking mighty fine. I bet this is why SKX-X was delayed, to put it on this process.
     
  25. HiroThreading

    HiroThreading Member

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    Kaby Lake is looking pretty impressive, especially in mobile devices.

    If Apple does indeed announce new MacBook Pros on the 7th of September, they must be feeling pretty pissed off at the fact that Intel only had Skylake-U chips on offer up to the launch of the new MBPs.

    Oh well, there's an aggressive refresh possibility early next year, and these chips look absolutely fantastic for the MacBook (with hopefully Thunderbolt 3).


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