Recommended ACLL/DCLL values for Intel Defaults Profile for 14900K processor?

[SmartOne_2000]

Hi:

Intel guidance says the AC/DC load line values must be identical for the Intel Defaults Profile (IDP).

In my Asus z690 MCE profile, ACLL = 0.4mOhm and DCLL = 1.1mOhm.

What are the Intel's ACLL/DCLL values that were used to test its recommended profile to come to the conclusion that there was hardly a performance hit due to the microcode?

I'm currently getting almost a 20% performance hit between IDP (Extreme) and Asus MCE in Cinebench R23 Multi-threaded tests .... i.e. 35K - 36K (IDP)  and 41K (MCE).

[SmartOne_2000]

bump...

[Earl_Intel]

Hi SmartOne_2000,

Thank you for posting in the communities!

I will review the information you provided internally and provide an update on this thread as soon as possible.

Best regards,

Earl E.

Intel Customer Support Technician.

[Earl_Intel · Accepted solution]

Hi SmartOne_2000,

Thank you for patiently waiting, to answer your inquiries.

We tested on Intel Raptor Lake Reference Board which the AC LL = DC LL = 1.1mOhm.

Your MCE BIOS is OCed by default and we recommended you use the latest BIOS with Intel Default Settings.

Also note that our performance claim for 0x12B is: Intel’s internal testing comparing 0x12B microcode to 0x125 microcode – on Intel® Core™ i9-14900K with DDR5 5200MT/s memory - indicates performance impact is within run-to-run variation. Both 0x12B and 0x125 are using Intel Default Setting.

Best regards,

Earl E.

Intel Customer Support Technician

[Earl_Intel]

Hi SmartOne_2000,

I wanted to follow up and see if you've had a chance to review the answer regarding to your inquiry.

Best regards,

Earl E.

Intel Customer Support Technician.

[SmartOne_2000]

Yes, Earl. Thank you for the answer. All is good now.

[Earl_Intel]

Hi SmartOne_2000,

Thank you for the confirmation, I will close this inquiry now.

If you need further assistance, please submit a new question as this thread will no longer be monitored.

Best regards,

Earl E.

Intel Customer Support Technician.