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Thread: Meltdown and Spector flaws. Will it slow down my PC?

  1. #1
    SG Enthusiast Easto's Avatar
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    Question Meltdown and Spector flaws. Will it slow down my PC?

    I've been watching the latest news regarding these CPU flaws and how Intel and other OS manufacturers are racing to patch them. But they are also saying that the patches may slow down a PC by 30%. Whether this is true or not, is there now going to be a whole new generation of CPUs? Will CPUs be advertised as "pre" flaw or "post" flaw? Will a difference be noticeable or am I worrying about nothing?

    https://www.bleepingcomputer.com/new...-security-bug/

  2. #2
    Administrator Philip's Avatar
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    AMD says their processors are not affected (rather affected by only one of the two)... People are overreacting because of the sheer number of affected machines, heh. Intel stock is taking a dive, AMD is going up.

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    I don't think the patch will cause noticeable performance decrease. On a separate note, that Ryzen box I just built is performing beautifully.

  3. #3
    SG Enthusiast Easto's Avatar
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    I'm not necessarily panicking. Intel is downplaying any major bottlenecks or slowdowns. But I still think it will be interesting if they start identifying CPUs as pre or post.

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    Administrator Philip's Avatar
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    I think it will be a software patch to isolate the RAM areas, which may in turn slow down the kernel some.

  5. #5
    Moderator YeOldeStonecat's Avatar
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    My hunch, once it'll be addressed in the immediate future with rushed out software patches, those patches will cause slowdowns.
    As they get time to iron out the kinks in the patches, groom the code, make it more efficient...you may see less of a slowdown as the original patch gets replaced with improved versions.

    As for some exact % of performance loss..there's just no accurate way to guess at that, look at all the various systems out there and their different states of health and software combinations..nearly infinite.
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    Administrator Philip's Avatar
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    Qualcomm also admits their ARM Snapdragon chips are affected...
    https://www.theregister.co.uk/2018/0...lnerabilities/

    This affects all types of mobile devices and routers as well it seems.

  7. #7
    Second Most EVIL YARDofSTUF's Avatar
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    Windows 7 and 8 hold outs are gonna feel it more than the rest, also those on older CPUs.

  8. #8
    SG Enthusiast Easto's Avatar
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    I've seen some of the reports and it doesn't seem to be as bad as I had originally thought. I was also a little concerned since a new build is in the future here and I wanted to try and cover all my bases.

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