i just did a few simple benchmarks over the last day to resolve to myself the performance hit to my i7-4790k
and actually i didn't even see the 4790k mentioned in the patch details...
(although every other Haswell was mentioned, e.g. 4770k)
but i installed it anyways and here are the results:
CINEBENCH R20 (for those who can't see attached Screenshot)
Keep in mind i only ran these tests once.
i also have the latest BIOS for cpu microcode on Win10 1909
CINEBENCH R20 LINK
- Before “windows10.0-kb4497165-v4-x64” - fresh reboot Score 1908
- Using “InSpectre.exe” to disable Spectre & Meltdown - reboot Score 1930
- Renabled “InSpectre.exe” to enable Spectre & Meltdown
- Then Installed “windows10.0-kb4497165-v4-x64”- reboot Score 1946
Whatever this means is up to you, but i'm happy enough not to disable any patch for performance reasons.