How does ryzen boost work?

[venomx]

 

I have a ryzen 5 3600...
It says in the description it can " boost " to 4.2ghz however according to ryzen master I've never seen it get near that even with cinebench

Here are my stats whilst playing cyberpunk...

 

 

[TylerDurden!]

50 minutes ago, venomx said:

boost

are you in manual or auto overclock?  The precision boost from what I understand only works with auto overclocking.  And the overdrive adds up to 200mhz more.  A lot of this depends on what your motherboard is capable of too, plus cooling, not just the CPU. 

[venomx]

10 minutes ago, TylerDurden! said:

are you in manual or auto overclock?  The precision boost from what I understand only works with auto overclocking.  And the overdrive adds up to 200mhz more.  A lot of this depends on what your motherboard is capable of too, plus cooling, not just the CPU. 

Auto  ( I havent changed any of the settings)

That sounds right then, base is 3.6 and I'm getting 3.8 on all cores 

[TylerDurden!]

I only have a 2600, my base is 3.4 and my auto control keeps me at 3.8 default.   What I have really found though, is that the bios you are running will have a big affect on your speeds, one bios I was running had me at almost 3.9 in auto, others down in the 3.7 range.  Your memory speeds come into play as well, the 2600 seems to like 3200mhz.  I also have cool n quit turned off too, maybe that has something to do with it, dunno.  I used to put so much time into getting a better overclock, now I usually just put it at default and let it run, the gains are negligible to what you used to be able to gain the past.  I would run my old phenom ii 965 Black Ed. all the time at 4Ghz but that was only 4 cores, and it had a 125w limit, the base on that was 3.4 i believe and it is over 10 years old now.

 

If you want to see 4.2 though, you are best off putting it there manually

[venomx]

Just ran cinebench and ya, one core will go upto about 4187mhz

[Bitter]

The advertised number, much like Intel, is the max single core boost speed. Ryzen will hit max or sometimes slightly over max clocks when kept cool. Keep it under 70C for best boost behaviors.

[Sarra]

2 hours ago, Bitter said:

The advertised number, much like Intel, is the max single core boost speed. Ryzen will hit max or sometimes slightly over max clocks when kept cool. Keep it under 70C for best boost behaviors.

I was rendering a video last night, and my 3900XT was sitting at a nice cool 63C, and I was getting frequent boosts up to 4.8ghz, but CPU utilization was only at 80-85%.