GTX 6XX boost setting how does it work ?

[Kaapstad]

I have just ran my GPUs overclocked @

GPU 1023mhz Mem 7004mhz Boost 1127mhz

I ran a copy of GPUZ for each GPU to monitor them.

I then did a run on Heaven 3.0

The strange thing is when I looked at GPUZ afterwards it showed the GPUs all running consistantly at between 1163mhz to 1176mhz depending on which GPU I was looking at.

Maybe its me misunderstanding but I thought the boost setting was the max GPU speed it was going to run at.

 

[Blackwhite]

No 1023 MHz is your clock without boost