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Re: Design flaw in intel processors...

  • Thu Jan 04, 2018 1:01 am
    • #8 by Dinosawer
    Graf wrote: ↑
    Wed Jan 03, 2018 2:36 pm
     I spent a good deal of money on a nice processor and now it's going to get nerfed by at least 20%? I guess it's good they found the bug before it became common knowledge.
    Ehm, no. The 20-30 percent number is only for tests that were made to have a lot of the affected operations, and unless you're running virtual machines you're not going to have anything near that.
    For real life applications and gaming the difference is more 0 - 4 percent...
    which still sucks, but less so.

    https://www.hardwareluxx.de/index.php/n ... esign.html
    https://www.computerbase.de/2018-01/int ... itsluecke/
    https://www.phoronix.com/scan.php?page= ... ming-Tests
    Last edited by Dinosawer on Thu Jan 04, 2018 3:48 am, edited 1 time in total.
    Warning: do not ask about physics unless you really want to know about physics.
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    Re: Design flaw in intel processors...

  • Thu Jan 04, 2018 3:47 am
    • #9 by fox
    Cornflakes_91 wrote: ↑
    Wed Jan 03, 2018 7:33 pm
    fox wrote: ↑
    Wed Jan 03, 2018 7:09 pm
     I do not understand which Intel processors this applies to.
    If it is written somewhere, I fail to see it :oops:

    -fox
    Long story short: all of them
    At least the ones built in the last ten years.
    :shock: Well then, my CPU was officially presented on 8 January 2007, which makes its design 11 years old -- if not a tad more.

    With such an old CPU I was caressing the idea of upgrading -- right in these days, in fact. Lucky me: I kept postponing it because the motherboard also needs to change (because socket).
    I was eyeing a modern i7 8th gen, but in light of these news I suppose that AMD makes very nice processors too...


    -fox
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    Re: Design flaw in intel processors...

  • Thu Jan 04, 2018 6:05 am
    • #10 by Cornflakes_91
    fox wrote: ↑
    Thu Jan 04, 2018 3:47 am
    Cornflakes_91 wrote: ↑
    Wed Jan 03, 2018 7:33 pm
    fox wrote: ↑
    Wed Jan 03, 2018 7:09 pm
     I do not understand which Intel processors this applies to.
    If it is written somewhere, I fail to see it :oops:

    -fox
    Long story short: all of them
    At least the ones built in the last ten years.
    :shock: Well then, my CPU was officially presented on 8 January 2007, which makes its design 11 years old -- if not a tad more.

    With such an old CPU I was caressing the idea of upgrading -- right in these days, in fact. Lucky me: I kept postponing it because the motherboard also needs to change (because socket).
    I was eyeing a modern i7 8th gen, but in light of these news I suppose that AMD makes very nice processors too...


    -fox
    Dont take my 10years figure as hard data.
    Im just interpreting what i read in other articles.

    But yeah, my 1700x is a nice processor :ghost:
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    Re: Design flaw in intel processors...

  • Thu Jan 04, 2018 7:00 am
    • #11 by Cody
    Apparently, Meltdown is the intel-specific CPU flaw - but Spectre has raised its ugly head too:
    Spectre potentially has a wider reach. It affects some chips in smartphones, tablets and computers powered by Intel, ARM and AMD. It is thought to be much harder to patch and no fix for it has yet been made widely available.
    Knowledge is a deadly friend, if no-one sets the rules
    The fate of all mankind, I see, is in the hands of fools
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    Re: Design flaw in intel processors...

  • Thu Jan 04, 2018 7:09 am
    • #12 by Cornflakes_91
    Cody wrote: ↑
    Thu Jan 04, 2018 7:00 am
     Apparently, Meltdown is the intel-specific CPU flaw - but Spectre has raised its ugly head too:
    Spectre potentially has a wider reach. It affects some chips in smartphones, tablets and computers powered by Intel, ARM and AMD. It is thought to be much harder to patch and no fix for it has yet been made widely available.
    https://www.theguardian.com/technology/ ... urity-flaw

    "Intel and ARM insisted that the issue was not a design flaw"

    its not a bug, its a feature!
    fox wrote: ↑
    Wed Jan 03, 2018 7:09 pm
     I do not understand which Intel processors this applies to.
    If it is written somewhere, I fail to see it :oops:

    -fox
    found a better answer

    "Meltdown is currently thought to primarily affect Intel processors manufactured since 1995, excluding the company’s Itanium server chips and Atom processors before 2013. "
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