i7-9750h - «Model 158 Stepping 10» or «Model 158 Stepping 13»?

Discussion in 'Hardware Components and Aftermarket Upgrades' started by Aleksander-, May 21, 2019.

  1. Aleksander-

    Aleksander- Newbie

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    I am trying to figure out which of the spectre/meltdown errors the i7-9750h is vulnerable to. This depends on cpu stepping, in which the «Model 158 Stepping 13» is the best. On intels website (Link beneath) the i7-9750h is listed both as «Model 158 Stepping 10» and «Model 158 Stepping 13».
    https://www.intel.com/content/www/u...ngineering-new-protections-into-hardware.html

    Does anyone know which it is?
     
  2. bennyg

    bennyg Notebook Virtuoso

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    What does CPUZ show?
     
  3. Aleksander-

    Aleksander- Newbie

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    Not quite sure what you mean. But in the «SKU mapping» table, the 9750h is listed both as «Intel64 Family 6 Model 158 Stepping 10» and «Intel64 Family 6 Model 158 Stepping 13». I wonder which of these two the 9750h uses.
     
  4. bennyg

    bennyg Notebook Virtuoso

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    Right, my bad I thought you were asking about a laptop you owned

    The list looks strange the ways it's organised, maybe ES samples, or older pre-fix inventory Intel sent to OEMs months ago so they could manufacture some inventory to accompany the 9th gen mobile launch?

    Maybe the list under each stepping shows the SKUs all binned from the same die config. Which would suggest the older 9750H are binned from a 6-core die along with the desktop i5s (maybe old Coffee Lake-S dies - 8700K/8086K/8950HK etc with a rebadge? lol), but the stepping 13 ones would be binned from the same 8 core die as the i9's? In which case seeing/measuring the physical die would reveal if its the wider 13.

    What is being fabbed right now would of course be 13 (the same die as the new R0 stepping 9900K/KF just hitting users now). If laptops with 9750H are the only ones you can find in any kind of stock level right now, that would suggest they'd be that older pre-mobile-9thgen-launch production run of 10s.
     
    Last edited: May 21, 2019
  5. VoodooBane

    VoodooBane Notebook Consultant

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    you know what? everything is vulnerable and not vulnerable to much attention to false negative, False/False, Positive/Positive. You really cant tell if you vulnerable. The sleep bug makes it impossible to see the problem. This is the same thing as Facebook with Mark. He says He is sorry and apologizes but now we understand he can't fix the issues. My self all together disabled sleep and hibernate.(diable fast startup in windows and bios) via why not because the computer boots in 7.4 seconds with an SSD. now i can tell if i am vulnerable using the checking software to see if i am or not truly vulnerable or not. It will be Persistent on the vulnerability scan . I think the problem is The sleep function for windows. It IS the back door that is the fault. That is my take.

    Also people find these vulnerability will not stop they will keep release new exploits to be aware of. You can also blame UEFI none of this was a total problem till the start using EFI on windows machines..
     
  6. Aleksander-

    Aleksander- Newbie

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    Im planning on buying a laptop in the next few weeks. Is there a way to tell whether the laptop I bought has the stepping 13 or not (in the software)?
     
  7. Megol

    Megol Notebook Evangelist

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    Yes you can: you are. The number of and severity of vulnerabilities can be looked up.
    No, Windows have nothing to do with Spectre and only indirectly (it having to patch a CPU design bug) with Meltdown.
    Spectre and Meltdown are due to CPU design choices and UEFI have nothing to do with the CPU design. UEFI supports other architectures than x86, UEFI have been out there since 2005, EFI since around 2000.
     
  8. bennyg

    bennyg Notebook Virtuoso

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    Yes - CPU-Z will show you the stepping :p
    Once you've already bought it :(

    CPUz is currently being confused, displaying 8850H data in 9750H laptops, I reckon my theory of rebadged CFL-H dies is correct
    [​IMG]

    A "stepping" would be the old rebadged 10

    D "stepping" (such as what shows up in CPUz of i9-9880H) would be 13

    [​IMG]

    Note the occasional misuse of terminology in what enthusiast overclockers call "steppings" e.g. re with current discussion of 9900K "steppings", P0 / R0 are "revisions" - the talk should be of "C stepping" instead of P0 and "D stepping" not R0
     
    Last edited: May 21, 2019
    tilleroftheearth likes this.
  9. Aleksander-

    Aleksander- Newbie

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    Thanks for great answers!
     
  10. VoodooBane

    VoodooBane Notebook Consultant

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    Oh but Windows gas very much alot to do with it... Lol I am talking about Windows using efi which is recent. Not apple.... efi is a problem with window being a part of it. And there are many more vulnerabilities that you your self knows or have read up about. We will leave it at that. More to come foresure or is bad.

    Sent from my SAMSUNG-SM-G928A using Tapatalk
     
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