News Intel Releases New Microcode Ups for old CPU Bugs

[Admin]

Intel released a microcode up for the latest speculative execution flaws, such as the MDS attacks affecting its CPUs. The up is now available for both consumer and server versions of Windows 10 build 1903, but users need to install it manually.

Intel Releases New Microcode Ups for old CPU Bugs : Read more

 

[Beetlebox]

Some of these bugs were discovered in 2018, but it wasn’t until early 2019 that Intel released the first patches, which were later revised for the following processors in the fall of 2019:

• Apollo Lake
• Cherry View
• Gemini Lake
• Haswell Desktop
• Haswell M
• Haswell Xeon E3
• Valley View

I don't get it, please help me understand. The revised SA00233 was published in June and none of the microcode patches in KB4497165 (1909 x64) are newer than May 2019 with most that are pertinent to SA00233 being from Feb 2019 to Apr 2019 with the exception of Apollo Lake and Gemini Lake which date back to 2018.

Now there have been microcode patches released in the fall of 2019 such as for Kaby Lake Y / U which as of 3rd Oct 2019 is 22 revisions higher than that in KB4497165.

 

[Kent Ferguson]

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

• 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

CINEBENCH R20 LINK

Whatever this means is up to you, but i'm happy enough not to disable any patch for performance reasons.

Cheers

 

[bit_user]

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

• 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

CINEBENCH R20 LINK

Whatever this means is up to you, but i'm happy enough not to disable any patch for performance reasons.

Thanks, but consider that cinebench is mostly compute-bound. The sorts of things that are usually affected by these patches are intensive storage tasks and other device interactions (including the GPU, as in the case of games).

So, anyone doing storage-intensive tasks or gaming should look to corresponding benchmarks.