[DISCUSSION] Meltdown and Spectre

Discussion in 'PC Hardware' started by scaramonga, Jan 3, 2018.

  1. Hadron-Curious

    Hadron-Curious MDL Guru

    Jul 4, 2014
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    My suggestion is that Intel and other processor makers need to start producing another processors for replacement more or less like automakers do with recalls. These patches are constituting more problems rather than a perfect solution. Indeed, I am not going to apply these fixes to any of my systems yet.
     
  2. Mikorist

    Mikorist MDL Member

    Dec 26, 2012
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  3. Joe C

    Joe C MDL Guru

    Jan 12, 2012
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  4. Mr.X

    Mr.X MDL Guru

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    Oh yes! Isn't this world full of beautiful things like this? :D
     
  5. toyo

    toyo MDL Senior Member

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    On the consumer side, gaming is largely unaffected (I expected Assassin's Creed: Origins to be impacted because of the insane CPU utilization and non-stop streaming of assets - it isn't).
    However, Cinebench and CPU-Z bench are most definitely affected (this is with Windows patch only, MSI didn't provide microcode update yet). Weirdly enough, the multithreaded benches are looking the same/a bit better on my PC, so within margin of error. Single thread, however, Cinebench fell from around 200 (8700K) to 190 and I tested a few times, it doesn't get better. CPU-Z dropped from 530-ish to 495-500 which basically puts the 8700K on par with their reference 7700K, so it's quite a significant drop.
    I've even tried to run CPU-Z and Cinebench with real-time prio and no other apps, yet the single thread results stay lower, no doubt about it, this is no "within margin of error", it's basically a generation of single thread performance being lost. I see the max Turbo Boost for 7700K is 4500MHz. 8700K is 4700MHz.
    Those 200 MHz? Lost, thanks Intel :)
     
  6. Mikorist

    Mikorist MDL Member

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  7. Yen

    Yen Admin
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    #47 Yen, Jan 8, 2018
    Last edited: Jan 8, 2018
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  8. Joe C

    Joe C MDL Guru

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    I reckon it's not a flaw until somebody (good or bad) finds it and exposes it
    Luckily Google research did find it and it's not going to be a zero day attack, but I'm going to hold for a little while and hopefully they'll get this patch refined by then
     
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  9. Mr.X

    Mr.X MDL Guru

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    I see it differently. I reckon a flaw it's a "dormant" flaw until someone "good" finds it and exposes it.
    Now I think about the "bad" ones: who knows if a "bad" has taken advantage of it in the past. Scary.
     
  10. Yen

    Yen Admin
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    It's about the illusion of infallibility of technical achievements.
    It's an elementary thing and requires a new generation of processors...on the OS side one can only do patchwork.

    The guys from TU Graz are neutral and tried different attack vectors...until they found a major hole..
     
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  11. Mr.X

    Mr.X MDL Guru

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    And they say patching is a palliative only. The cure lies on a new gen of processors.
     
  12. pcnavarra

    pcnavarra MDL Senior Member

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    :shock:
     
  13. ColdZero

    ColdZero MDL Addicted

    Nov 9, 2009
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    I wonder if the intel 9 generation CPU will have this flaw fixed. :busted_cop:
     
  14. Joe C

    Joe C MDL Guru

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    Intel should give up new processors, but we know that ain't going to happen. The airbags are bad on my car because of a defect in manufacturing and I'm getting a new airbag.... Why not with pc's?
     
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  15. Yen

    Yen Admin
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    #55 Yen, Jan 8, 2018
    Last edited: Jan 8, 2018
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  16. Joe C

    Joe C MDL Guru

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    Something tells me that Intel was skirting some security in favor of speed to look better than AMD.
    Now that they are busted on this, they ought to have to pay for their greed
     
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  17. Yen

    Yen Admin
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  18. Mr.X

    Mr.X MDL Guru

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    The airbag is a single item to be replaced, not much money relatively involved.
    To give up a processor it's a different story. It involves to give up a new mobo, new ram, new this and there, hehe.
     
  19. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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    + the car story is about (human) lives.
     
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  20. Mr.X

    Mr.X MDL Guru

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    Hey! Nowadays a PC might involve human lives too! :fear::fear2: