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A comment on AMD server CPUs capture highest market share gains from Intel in 15 years. Parent comment

Re:AMD server CPUs capture highest market share gains from I... by altusbrown on Sunday May 09, 2021 @05:03PM (#27099731)
Something about the AMD implementation is notably harder to exploit, though last I looked it wasn't clear what that was. It's held up much better, and a lot of people have looked at it.

Still exploits, but almost impossible to do in the field last I checked, where Intel has been demonstrated on live systems handling production load.

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Re:AMD server CPUs capture highest market share gains from I... by to11mtm on Sunday May 09, 2021 @05:49PM (#27100161)
It's difficult to say why AMD's implementation has held up better. One interesting thing I noted looking at wikichip's info [0] was that Zen calls out that Cache is tagged by thread. I wonder whether Intel's HT did/does the same or not.

[0] https://en.wikichip.org/wiki/amd/microarchitectures/zen#Simu...

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