[altusbrown]

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.

[to11mtm]

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...