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post #33 of (permalink) Old 07-23-2019, 09:57 AM
rluker5
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Quote: Originally Posted by dj_tokyu View Post
Are those improvements based on the new instruction sets in the new CPUs and therefore only 9% in select cases? Security issue mitigation? I've looked, but haven't found a clear answer.
I've personally found that most of the security related performance penalty have gone away with the latest (1903) version of windows 10. At least per crystal diskmark random & smoothness in games. 1903 is using retpoline.

I don't think any reviewer wants to go through the headache of testing no mitigation vs old mitigation vs new mitigation so this talk of performance loss will probably quietly fade away.

If the reviewer is using W10 1903, they probably have it running default, which would be mitigations enabled.
If they are using W10 1809, default, then the Intel chip will perform relatively worse since the bad performing mitigation came with that version.
And if they are using an earlier version then it depends if they have the mitigation update installed or not. Or if they have intentionally tampered with it.

Hopefully the reviewers list which version of W10 they are running.

And those new Intel cpus have a lot more than just instruction sets added. Closer to the Zen1 to Zen2 jump.

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