Another Intel CPU vulnerability

[RavenXXX2]

Intel Core i5 8400 vs. i5 9400F Meltdown/Spectre/L1TF/MDS Mitigation Impact

18% loss ouch.

https://www.phoronix.com/scan.php?page=article&item=intel-9400f-mitigations&num=1v

 

[Rainmaker]

Intel Core i5 8400 vs. i5 9400F Meltdown/Spectre/L1TF/MDS Mitigation Impact

18% loss ouch.

https://www.phoronix.com/scan.php?page=article&item=intel-9400f-mitigations&num=1v

Quelle surprise. Interesting how the 8th and 9th gen chips are essentially identical in performance. You may as well save the money and go CFL if you're dead set on Intel for whatever reason.

 

[kitfit1]

Intel Core i5 8400 vs. i5 9400F Meltdown/Spectre/L1TF/MDS Mitigation Impact

18% loss ouch.

https://www.phoronix.com/scan.php?page=article&item=intel-9400f-mitigations&num=1v

Exactly. Add up all those 3% here, 5% there, another 3% here yet another 5% there....................it always was going to be a large figure and i don't think for one moment it has stopped yet.

 

[DragonQ]

I've enabled all mitigations I can on Windows 10 v1709 (except MDS because it won't enable for some reason) and the performance in games is certainly affected. I can see with frame time captures that frame time spikes are more frequent. I cannot try retpoline (a less-performance-impacting fix) because it only applies to v1809, and that won't install on my system unless I disable VT-d, which I use.

Cannot wait for Zen 2.

 

[EsaT]

Interesting how the 8th and 9th gen chips are essentially identical in performance.

That's because difference is basically clock speed.
Intel has done only minimal changes since 6th gen Skylake and 9th gen would be honestly only 7th gen.