3DMark CPU frequency jumping?

[JamesHewitt]

So I ran AIDA64 stress test, even with the GPU and it didn't throttle or anything like that. When i done a 3DMark though it is jumping all around. Any idea why?

 

https://gyazo.com/ee8b6577fd811fcf495d7b9cb351d26a - photo 

 

Edit, it is Oc'ed to 4.4ghz but the hottest it hit was 50ish c.

[3 Lions]

It's Turbo Boost doing it's normal thing, don't worry about it. 

[Enderman]

1 minute ago, LinusTechTipsFanFromDarlo said:

It's Turbo Boost doing it's normal thing, don't worry about it. 

If it's OCd then it should not be dropping like that under load.

[JamesHewitt]

2 minutes ago, LinusTechTipsFanFromDarlo said:

It's Turbo Boost doing it's normal thing, don't worry about it. 

 

Just now, Enderman said:

If it's OCd then it should not be dropping like that under load.

I had it at 4.5 before and it didn't do this which is why I'm confused

[3 Lions]

Just now, Enderman said:

If it's OCd then it should not be dropping like that under load.

The speed on any modern Intel CPU will dynamically change according to the load, it only goes to it's max clock when all cores are pinned at 100%

[Enderman]

14 minutes ago, LinusTechTipsFanFromDarlo said:

The speed on any modern Intel CPU will dynamically change according to the load, it only goes to it's max clock when all cores are pinned at 100%

1) aida64 is a stress test

 

2) the CPU IS pinned at 100%

 

3) an overclocked CPU should be at it's max clock even below 100% load

 

4) it is completely abnormal for a CPU to halve it's clock speed under load, causing the fps stutters you see in the top chart

 

5) an overclocked CPU is not the same as a turbo boosting CPU. It does not lower the clock speed when multiple cores are used like turbo boost does to conserve TDP.

[done12many2]

32 minutes ago, JamesHewitt said:

So I ran AIDA64 stress test, even with the GPU and it didn't throttle or anything like that. When i done a 3DMark though it is jumping all around. Any idea why?

 

https://gyazo.com/ee8b6577fd811fcf495d7b9cb351d26a - photo 

 

Edit, it is Oc'ed to 4.4ghz but the hottest it hit was 50ish c.

 

I bet you ran the 3dMark benchmark with your Windows Power Options set to Balanced or Power Saver.   Set it to High Performance and your CPU will stay locked at 100% clock speed.

[JamesHewitt]

1 hour ago, done12many2 said:

 

I bet you ran the 3dMark benchmark with your Windows Power Options set to Balanced or Power Saver.   Set it to High Performance and your CPU will stay locked at 100% clock speed.

Already on high performance. It's dipping a lot less in some tests now for some reason.

[done12many2]

2 hours ago, JamesHewitt said:

Already on high performance. It's dipping a lot less in some tests now for some reason.

What x99 motherboard do you have?

[JamesHewitt]

13 hours ago, done12many2 said:

What x99 motherboard do you have?

x99 Deluxe (original) - https://www.overclockers.co.uk/asus-x99-deluxe-intel-x99-socket-2011-ddr4-atx-motherboard-mb-627-as.html

[done12many2]

18 minutes ago, JamesHewitt said:

x99 Deluxe (original) - https://www.overclockers.co.uk/asus-x99-deluxe-intel-x99-socket-2011-ddr4-atx-motherboard-mb-627-as.html

 

That's the board that I use for my 5960x. It has a great VRM on it with decent cooling. Do you have good airflow passing by the VRM? They tend to get hot during high overclocks. This in turn can affect clockspeed if they get too hot. 

 

Mine is now water cooled via a monoblock to avoid the excessive heat. 

[JamesHewitt]

3 hours ago, done12many2 said:

 

That's the board that I use for my 5960x. It has a great VRM on it with decent cooling. Do you have good airflow passing by the VRM? They tend to get hot during high overclocks. This in turn can affect clockspeed if they get too hot. 

 

Mine is now water cooled via a monoblock to avoid the excessive heat. 

Front is an intake, top and rear is exhaust. Thinking the vrm could be getting warm 

[done12many2]

21 minutes ago, JamesHewitt said:

Front is an intake, top and rear is exhaust. Thinking the vrm could be getting warm 

 

Nice looking build man!  I believe you have plenty of air flow to keep that VRM adequately cooled.  

 

You can actually monitor VRM temps with AIDA64 or HWinfo64.  Something worth checking on.  Make sure to check them under stress.

 

My 5960x is OC'd for daily use at 4.6 GHz (1.23v) / 4.2 Cache (1.1v) and draws a great deal of current through the VRM.  I'm confident that despite my low voltage, I'm still still torturing the VRM on my x99 Deluxe more then your 5820k is torturing it on your x99 Deluxe.  Your issue more then likely is elsewhere, but check those VRM temps anyways.