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Ryzen turbo boost - why does it not go full speed when being taxed?

I assume the right column is the max clock category? If so, then it's reading the max clocks wrong. 5.3GHz single core boost(without exotic cooling) on a 2700x seems less likely than me dating Milla Jovovich...


ok, it's more likely! :D
 
opethdisciple said:
Sounds normal.

That's how my 2700x behaves. I see spikes to about 4.1Ghz but all cores are similar to your 3974Mhz speeds.

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Watching the video above has made me think of something.

The fact that when you enable DOCP and it manually sets the SOC to 1.1v, have we potentially handicapped the CPU's PBO in that one variable by saying do not exceed this value?

It might be theoretically better then leave it on auto so the mobo/cpu can exceed 1.1v given certain situations. But then this then leaves you with potentially unstable ram if you push the DRAM clock speed.

Am I right in my assumption or wrong?
Click to expand...

You are 100% correct.

Getting SOC correct when clocking Ram is critical, too much and it will fail any form of testing apps. Too little and you will get the same result....................it has to be spot on for a good clock on your Ram.
Obviously it has to be there or there about's for any CPU clock as well. This though is where choice of Mobo and how good (or how bad) your VRM's are. To be honest, this has always been the case since IMC's have been on the CPU and it's the same with Intel as well.
This is where my view on Ram clocking differs from what most would say. Since i moved to Ryzen (1700 and now 2700x) i have always clocked the ram to the max stable first and then worked on the CPU. That said, the CH6 has excellent VRM's in the first place.
 
If it could run at 4.3Ghz on all cores under heavy loads it would be a 4.3Ghz part, boost uses spare speed under lighter loads to help speed things up. It's pointless otherwise.
 
chickadee said:
So i just got my 2700x and i have been keeping an eye on temps and clocks, it will boost to 4.3ghz in general day to day activities but if i load cinebench or something cpu intensive then it wont boost past 3974mhz, is there a reason for this? My cpu never goes above 55-60c, i just ran the benchmark and it was 48c at 100% utilisation, doesnt seem too hot for turbo?
Click to expand...

This is normal behaviour, the CPU is designed to run at higher frequencies when not under stress. Temperature is not the determining factor in this case.

If you want it to run all cores at higher frequencies under stress you have to overclock them all to run at the same speed.
 
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