"The GPU clock of 1514 Mhz I dont know how that number got there"
that is what the card is actually boosting to at that moment in time.. the gpu-z boost speed seems to be some kind of estimate.. the boost figure is related to the clock speed but will go up and down relative to temps power usage and whatever..
basically the actual boost speed (the speed the card is actually running at) will drop from a theoretical maximum related to the clock speed set when the card hits any of its control limits.. in short it throttles down..
if you run furmark you will see much lower boost speeds.. furmark will always hit the control limits.. heaven or valley not so much so..
a boost of 1514 is quite good.. my TI would not be fully stable that high.. it would ether trip over its own feet or throttle down..
trog