PBO 2 higher and lower frequencies depending on load

[Mnemonically_impared]

5700x MSI x470 Gaming plus mobo

 

I had this crazy thought.

 

Is it possible to have pbo increase my frequency to 4850Mhz (which it does all core) and have pbo lower my frequency sub 2000Mhz (or lower utilization) on low load?

 

Currently 'low' only goes down to 3.8ghz, I wonder how low can it go with all the benefit of PBO 

[Hinjima]

2 minutes ago, Mnemonically_impared said:

5700x MSI x470 Gaming plus mobo

 

I had this crazy thought.

 

Is it possible to have pbo increase my frequency to 4850Mhz (which it does all core) and have pbo lower my frequency sub 2000Mhz (or lower utilization) on low load?

 

Currently 'low' only goes down to 3.8ghz, I wonder how low can it go with all the benefit of PBO 

Why do you want lower clockspeeds during lower loads?

[podkall]

PBO won't go low, as it's called "Precision Boost Overdrive" which essentially means, that the CPU will boost as fast as possible for the smallest reason possible to achieve it's task in the shortest time.

 

You'd actually want to turn off PBO if you want idle clocks to be lower and jump less often and less higher.

[Levent]

PBO is a boost thing, not under clock thing. C states are for power savings, enable them if they are disabled.

 

i am not sure if PBO can work with c states though. 

[GuiltySpark_]

1 hour ago, Mnemonically_impared said:

and have pbo lower my frequency sub 2000Mhz

Your chip does this automatically. If you're relying on Task Manager to gauge idle clocks, it won't. Open HWiNFO's Sensors panel and look at the "Effective Clockspeed" section, or just use Ryzen Master. Both of these are going to give you accurate idle clocks.

[Mnemonically_impared]

Figured it out, 1800mhz when not in use but still PBO will boost to 4850mhz.

The reason as to why lower clocks is so that my CPU voltage goes down in Idle time, this also decreases my CPU wattage from +-40w to only +-7w