What changes the cpu speed on demand

[webcan]

HI! I noticed when I tried to check the cpu speed that it was all over the place including the multiplier, I am assuming that this is probably a function of the MB that I have, can someone tell me what function/feature can do this?

I have Asus Rampage IV Extream.

 

[Deleted member 1330443]

Turbo Boost Technology. You can disable it in the BIOS although I don't recommend it if you aren't overclocking.

 

[Applepienation]

Power settings, current workload, heat, turbo.

Lots of things can change processor speeds.

 

[JohnPMyers]

It's a function of the CPU itself. When demand is low, the CPU downclocks itself to save power and usually has several steps it can settle at between full speed and it's lowest point.

However if you notice it's downclocking itself while you have it under full load, that means it's over-heating and time to vacuum out the dust bunnies

 

[webcan]

Thank you all your replies. YOu all had a point,