Wink CPU Type

hi guys
My phone is Huawei Ascend G525 which comes with Android 4.1.2 .
My question is that, what's the meaning of QUAD CORE 1.2 GHZ?
That's my phone's CPU specification and I'm doubtful about whether it has four core and each cores' frequency is 1.2GHZ or the sum of four cores' frequency is 1.2GHZ.
Secondly, how do you assess this phone's performance?(Regarding to its CPU)