3770k @ 4.29 ghz but haven't overclocked

[robomartion]

Hi I just started running a benchmark with my 3770k.
I opened task manager>performance and it says its speed is 4.29GHz.
I haven't overclocked it. To the right it says maximum speed: 3.90 GHz, which is what I thought it should be.

If anyone could explain that would be great.

Thanks

 

[ZippyPeanut]

Did you get your computer from CyberPower?

 

[phil_livesey]

the stock speed is 3.5GHz, the turbo boost knocks it up to 3.9GHz.

where did you get the cpu from?

 

[TheBigTroll]

if it hits 4.3ghz (use CPU-Z to validate) its overclocked alright

 

[robomartion]

CPU-Z says 3.9 but the activity monitor says 4.29.
I took a screenshot: http://img59.imageshack.us/img59/2204/capturemxp.png

 

[TheBigTroll]

id trust CPU z more. either way, it doesnt really matter