Intel Skylake / Kaby Lake

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

  1. TahoeDust

    TahoeDust Senior member

    Joined:
    Nov 29, 2011
    Messages:
    528
    Likes Received:
    380
    Well, I did not see it in the other thread, so I was glad he posted it.
     
  2. VirtualLarry

    VirtualLarry Super Moderator
    Super Moderator

    Joined:
    Aug 25, 2001
    Messages:
    38,501
    Likes Received:
    2,013
    Newegg on ebay does, or did, too.
     
    Drazick likes this.
  3. Ajay

    Ajay Diamond Member

    Joined:
    Jan 8, 2001
    Messages:
    4,313
    Likes Received:
    1,139
    Seriously?? It was a different poster - maybe he should search the forum before posting anything :rolleyes:
     
    Pick2, CHADBOGA, psolord and 2 others like this.
  4. Hans de Vries

    Hans de Vries Member

    Joined:
    May 2, 2008
    Messages:
    135
    Likes Received:
    48
    It has very significantly grown to 17.0 mm2 indeed.

    [​IMG]
     
  5. w3rd

    w3rd Senior member

    Joined:
    Mar 1, 2017
    Messages:
    255
    Likes Received:
    61

    Thanks.
     
  6. coercitiv

    coercitiv Platinum Member

    Joined:
    Jan 24, 2014
    Messages:
    2,298
    Likes Received:
    1,038
    I did need the post, following mainly this thread in regard to SKL-X info. It's very good news, but it also highlights one of the painful subjects we had to discuss (repeatedly) with another recent launch.

    Back in March some more enthusiastic and less experienced fans were very surprised by the amount of last minute changes before review publish time, going even as far as entertaining the idea that "this had never happened before with a CPU launch".

    Maybe this will open some eyes and help more people understand that although it is an unpleasant and unwanted occurrence (mostly for reviewers and maybe early adopters), it is to be expected with new CPU launches in a competitive environment.
     
    misuspita and KompuKare like this.
  7. tamz_msc

    tamz_msc Golden Member

    Joined:
    Jan 5, 2017
    Messages:
    1,609
    Likes Received:
    1,448
    Source
     
    Drazick likes this.
  8. mikk

    mikk Platinum Member

    Joined:
    May 15, 2012
    Messages:
    2,178
    Likes Received:
    354
    Does he refer to the cache structure or what does he man? He also implies he can't update the benches with the new bios till launch, that would be disappointing for Anandtech.
     
    Arachnotronic likes this.
  9. tamz_msc

    tamz_msc Golden Member

    Joined:
    Jan 5, 2017
    Messages:
    1,609
    Likes Received:
    1,448
    Hard to say, but my interpretation is that there probably won't be software-level optimizations to the extent Ryzen had, mostly stability updates and bugfixes.
     
    Drazick likes this.
  10. TheLycan

    TheLycan Member

    Joined:
    Mar 8, 2017
    Messages:
    34
    Likes Received:
    11
    Am I the only one who thinks that last 100 posts didnt say anything really? Why this overrated intel launch? Wait fo the reviews guys

    (Spam removed)
     
    #12385 TheLycan, Jun 18, 2017
    Last edited by a moderator: Jun 18, 2017
  11. Arachnotronic

    Joined:
    Mar 10, 2006
    Messages:
    11,438
    Likes Received:
    1,781
    Could be a microcode update.
     
  12. mikk

    mikk Platinum Member

    Joined:
    May 15, 2012
    Messages:
    2,178
    Likes Received:
    354

    Yes this is what he said in his last tweet:

    Makes sense because the base uarch is unchanged to Skylake Mainstream, all the software should work from the beginning without issues, developers don't have to tweak anything. The only difference is AVX512 if they want. We have to check which reviews did use the newest bios in their review, this is an important info.
     
    TheF34RChannel likes this.
  13. jpiniero

    jpiniero Diamond Member

    Joined:
    Oct 1, 2010
    Messages:
    4,512
    Likes Received:
    202
    multippp likes this.
  14. jpiniero

    jpiniero Diamond Member

    Joined:
    Oct 1, 2010
    Messages:
    4,512
    Likes Received:
    202
    Well, if that is the case then my other observation is probably true - the mesh,uh, switch? is at least 1.3 mm2 per core PLUS the memory blocks have one too. It's getting pretty expensive to do this interconnect. And then AVX-512 costs somewhere around 1-2 mm2 per core.
     
  15. Nothingness

    Nothingness Golden Member

    Joined:
    Jul 3, 2013
    Messages:
    1,667
    Likes Received:
    111
    Cache sizes, inclusiveness and so on often have more impact than instruction scheduling so optimized software will care a lot about changes in cache hierarchy of Skylake-X vs Skylake.

    Of course lazy and incompetent programmers don't care optimizing for cache hierarchy :rolleyes:
     
  16. Timmah!

    Timmah! Senior member

    Joined:
    Jul 24, 2010
    Messages:
    646
    Likes Received:
    40
    Are the LCC and XCC actual real dieshots or just photoshopped versions of the MCC? Or nobody knows?
     
    #12391 Timmah!, Jun 18, 2017
    Last edited: Jun 18, 2017
  17. mikk

    mikk Platinum Member

    Joined:
    May 15, 2012
    Messages:
    2,178
    Likes Received:
    354
    edit, alread posted
     
    #12392 mikk, Jun 18, 2017
    Last edited: Jun 18, 2017
  18. jpiniero

    jpiniero Diamond Member

    Joined:
    Oct 1, 2010
    Messages:
    4,512
    Likes Received:
    202
  19. Shivansps

    Shivansps Golden Member

    Joined:
    Sep 11, 2013
    Messages:
    1,863
    Likes Received:
    129
    Yeah that whould make sence, cheap boards for KBL-X, 7800X and 7820X...

    But at least they need to keep quad channel memory, ditching that does not sound smart at all, just put 4 ram slots, KBL-X only uses 2 of these.
     
    #12394 Shivansps, Jun 18, 2017
    Last edited: Jun 18, 2017
  20. TheF34RChannel

    TheF34RChannel Senior member

    Joined:
    May 18, 2017
    Messages:
    616
    Likes Received:
    258
    It would if they sell the KBL-X parts as pure OC parts for benchers who don't use quad channel anyway - and only release those boards for KBL-X.
     
  21. Shivansps

    Shivansps Golden Member

    Joined:
    Sep 11, 2013
    Messages:
    1,863
    Likes Received:
    129
    That whould be a niche, at best, to me it does not seem right from a market POV to release boards only for the most irrelevant 2 CPUs ever.

    Now releasing cheapper boards for both KBL-X and 7800X, 7820X seems to be a better choice. They really dont need much, 140W max, just 1 PCI-E 16x, two at most, 2 PCI-E x1, 4 ram slots, 1 or 2 M2 and 6 satas... They can do that whiout too much problem.
     
  22. frozentundra123456

    frozentundra123456 Diamond Member

    Joined:
    Aug 11, 2008
    Messages:
    9,751
    Likes Received:
    405
    Lets hope that means 4.5+ is a reasonable expectation for the 6 and 8 core parts. A couple hundred extra mhz is not in any way a game changer for the quad parts, but if the six and eight core parts clock accordingly, would give them a nice boost over Ryzen. Personally, I no matter how many cores you can get for cheap, I would never give up the single core performance that one has to sacrifice with Ryzen. But then again, I dont do any heavily multi-threaded productivity apps.
     
    Arachnotronic and TheF34RChannel like this.
  23. TheF34RChannel

    TheF34RChannel Senior member

    Joined:
    May 18, 2017
    Messages:
    616
    Likes Received:
    258
    From that point of view you'd be spot on. As for niches, both KBL-X parts already are some awkward niche by themselves.
     
    Arachnotronic likes this.
  24. Arachnotronic

    Joined:
    Mar 10, 2006
    Messages:
    11,438
    Likes Received:
    1,781
    KBL-X would be interesting if CFL-S weren't coming to obsolete them.
     
    CHADBOGA and TheF34RChannel like this.
  25. wildhorse2k

    wildhorse2k Member

    Joined:
    May 12, 2017
    Messages:
    180
    Likes Received:
    81
    It would make sense to get coffeelake-x on X299 to replace the kabylake-x. Keep Z270/Z370 only for mainstream cheap CPUs.