3900x all cores Cinebench behaviour

Discussion created by justanother3900xowner on Sep 1, 2019
Latest reply on Dec 18, 2019 by lawrencewilliams

Hello AMD and community,


I am the owner of a 3900x. My concern is with my core boost clocks as well as PPT, TDC and EDC values as reported by Ryzen Master when I run Cinebench Release 20. The Cinebench test is executed without any programs running in the background.


As we can see on the image here, my 3900x clocks run around 3982 MHz and its PPT, TDC and EDC values are in the red zone, that is at 100%, 95% and 96%. These 3 variables seem to be a bottleneck.


At the moment, I'm concerned with the fact that my CPU can't seem to hit 4200 to 4300 MHz boost-clocks on all-cores with these Cinebench tests when reading Ryzen Master values (clock values as reported by HWInfo might be a bit higher actually).


Could AMD people and/or other owners confirm that these values for PPT, TDC and EDC when running Cinebench on all-cores is typical and standard behaviour? 



Here is my config:
3900x with  a Noctua NH D15 cooler ;

MPG x570 Gaming Pro Carbon Wifi from MSI running BIOS version 7B93v11 (AMD ComboPI1.0.0.3a) ;

2 x 8 G.Skill Trident Z Royal running at 3600 16-16-16-36 ;

Windows 10 version 1903 ; I am running the AMD Balanced Plan


The only BIOS settings that are not "stock" are the RAM XMP settings. In BIOS I simply activated the XMP profile and my RAM sticks then automatically settled to said timings. Note that I am running BIOS version 7B93v11 (AMD ComboPI1.0.0.3a) because the 7B93v124 (ComboPI1.0.0.3abb) is a Beta version for my motherboard at the moment (Support For MPG X570 GAMING PRO CARBON WIFI | Motherboard - The world leader in motherboard design | MSI Global).


Any thoughts on the subject are welcome. 

Thank you!