Explain to me plz

Hello, I have a EVGA 7950gt oc 256, in the box says that the core is at 650 mhz, and the memory at 1400 mhz.
Ok i have GPU Z and he says core 565, and memory 715.
Am i wrong or the card is wrong or i don't know how to read the data
I would insert a pic but i don't know how
Ok i have GPU Z and he says core 565, and memory 715.
Am i wrong or the card is wrong or i don't know how to read the data
I would insert a pic but i don't know how