My cpu does not reach it's boost clock. How does it work?

[superfantastic]

My i7 9800x has a base clock of 3.8GHz and a boost clock of 4.4GHz. But when I run cinebench or really any other program it will never be boosted higher than 4.1GHz. Do I have to do something to make it reach 4.4? I shouldn't have to overclock it if the advertized boost clock is 4.4GHz right?

[Electronics Wizardy]

Are you running single or multithreaded cinebench? You will only hit that speed on single threaded workloades.

[BigRom]

4.4GHz only applies to one of the cores, not all of them. 4.1GHz all-cores boost at stock is normal

 

You could try overclocking it to get the all-cores boost clock up, though I wouldn't expect to hit 4.4GHz all cores as that might be a bit difficult

[superfantastic]

1 minute ago, Electronics Wizardy said:

Are you running single or multithreaded cinebench? You will only hit that speed on single threaded workloades.

I did run multicore. But I ran a singlecore just now and it only went up to 4.2, briefly. So there is still something wrong?

[Electronics Wizardy]

Just now, superfantastic said:

I did run multicore. But I ran a singlecore just now and it only went up to 4.2, briefly. So there is still something wrong?

what re temps? 

 

But it doesn't seems tht off, there re. lot of factors, and that seems to be the expected all core turbo

[superfantastic]

Just now, Electronics Wizardy said:

what re temps? 

 

But it doesn't seems tht off, there re. lot of factors, and that seems to be the expected all core turbo

The core that was used for the singlecore test was at 67C max. During all core test the highest temp was 76 of one of the cores. You think that would influence the boost clock somehow?

[Electronics Wizardy]

3 minutes ago, superfantastic said:

The core that was used for the singlecore test was at 67C max. During all core test the highest temp was 76 of one of the cores. You think that would influence the boost clock somehow?

Those temps shouldn't affect it.

 

Where there background apps running, that might lower the clock.