GPU Overclcking itself?

[code3]

Hey, so i've had my GTX 1050ti Zotac Mini edition for a good 6 months.

 

I've never had a problem at all with it, and i would hardly call this a problem now. 

I decided to benchmark the gpu since i recently overclocked my cpu. So i booted up Heaven benchmark and popped up GPU-Z on my second monitor. All was fine till the benchmark started. Core clock went from 1303mhz to 1721mhz! My boost is set to something like 1450mhz.

 

Now that i look at it more its going up to 1721 in every game. Memory isnt going up but core clock is.

 

So the main question is why, how can i stop this and should i stop this. 

 

Note: I've never even attempted to overclock the gpu.

[Enderman]

That's called gpu boost 3.0 and it's normal.

[code3]

Just now, Enderman said:

That's called gpu boost 3.0 and it's normal.

Well alrighty sir.

[SlaughterSmurf]

GPU Boost 3, it's normal and intended by Nvidia. Free performance, you can't and shouldn't disable it.