Microsoft: Haswell and older CPUs are slowed down significantly by Spectre fixes

Re:Microsoft: Haswell and older CPUs are slowed down signifi... by jesperhh on Wednesday January 10, 2018 @04:40AM (#16113662)

How convenient for Intel - they have been unable to improve significantly on the single threaded performance since the 4790K but with this "fix", newer CPUs will magically start to look better than the old ones..

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Re:Microsoft: Haswell and older CPUs are slowed down signifi... by dogma1138 on Wednesday January 10, 2018 @05:41AM (#16113963)

Let’s see what happens with AMD.

It’s vulnerable to Spectre even to Variant 2 but they define it as a very low risk what ever that means and only issuing fixes for Variant 1.

It looks like the second variant of Spectre the out of bounds check is the culprit here; if AMD isn’t vulnerable at all it would be great but to me it looks like they are sitting on the fence to wait and see where the exploits go.

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Re:Microsoft: Haswell and older CPUs are slowed down signifi... by snvzz on Wednesday January 10, 2018 @07:13AM (#16114380)

And my main system is one such 4790K, which would still have been fine for a few years, but I guess I'm looking at 2019/Zen2 now.

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Re:Microsoft: Haswell and older CPUs are slowed down signifi... by dod9er on Wednesday January 10, 2018 @06:10AM (#16114084)

don´t give them ideas... I see great new benchmarks with every security-incident.

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