Spectre and Meltdown in Hardware: Intel Clarifies Whiskey Lake and Amber Lake

Discussion in 'HardForum Tech News' started by DooKey, Aug 30, 2018.

  1. DooKey

    DooKey [H]ard DCOTM x4

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    Intel has said they are working on hardware fixes for Spectre and Meltdown, but they haven't been very specific about things lately. Anandtech decided to give them a ring and Intel told them a few more things about their upcoming processors. Amber Lake will not have any hardware fixes since it is basically Kaby Lake. Whiskey Lake will have some hardware fixes and Cascade Lake will have the most hardware fixes. Another thing that Intel did mention in their discussion was that Spectre Variant 2 hardware fixes will have minimal impact on performance.

    The big performance marker is tackling Spectre Variant 2. When fixed in software, Intel expects a 3-10% drop in performance depending on the workload – when fixed in hardware, Intel says that performance drop is a lot less, but expects new platforms (like Cascade Lake) to offer better overall performance anyway.
     
  2. LightsOut41

    LightsOut41 Limp Gawd

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  3. Chris_B

    Chris_B [H]ardness Supreme

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    So even with a hardware level fix there will be a percentage of performance loss? Ooh
     
  4. drescherjm

    drescherjm [H]ardForum Junkie

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    Remember AMD has Spectre as well. They plan hw fixes in Zen2 (next year).

    This is one reason why I don't have one of those gen 2 TR4 systems..
     
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  5. drescherjm

    drescherjm [H]ardForum Junkie

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    The question is how much is a lot less than 3% to 10%? And is the 3% to 10% really accurate or a best case scenario.
     
  6. THRESHIN

    THRESHIN 2[H]4U

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    So they need 3 gens to fix this? Wow...
     
  7. Rockenrooster

    Rockenrooster Limp Gawd

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    Yes but they don't have Meltdown.
    Meltdown is the (slightly) bigger issue since the fix for it causes a bigger performance impact than Spectre.
     
  8. drescherjm

    drescherjm [H]ardForum Junkie

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    Meltdown is the easy one to fix of these. However yes it does have a larger performance impact in some situations with the current software / firmware fixes.
     
    Last edited: Aug 30, 2018
  9. [21CW]killerofall

    [21CW]killerofall Aliens...

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    Honestly, I am surprised it was only 3 gens, considering how long it takes to develop a new processor architecture from scratch to release.
     
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  10. dgz

    dgz [H]ardness Supreme

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    I used to write all these long posts back in the day. A couple of scrolls, sometimes more! Now? Look at me. LOOK AT ME
     
  11. Bobert

    Bobert Limp Gawd

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    "Cascade Lake will have the most hardware fixes"

    Mostly
    , but when they say all it's fixed. :p
     
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  12. bsbllclown

    bsbllclown [H]Lite

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    Article aside, why would we believe anything from Anandtech or Toms now after the debacle that was the "Just buy it Shills". Both owned by the same company, to me both sites are avoid at all costs now. The info they provide has been poisoned.
     
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  13. Mega6

    Mega6 [H]ard|Gawd

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    My thoughts exactly. ALL