Does CPU OCing affect integrated graphics?

[denkoul]

Hey, im on a low budget pc. I got an amd a10-7850k (kaveri apu) and an asrock fm2+a58m vg3 i think. If i want to OC the iGPU of the kaveri, do i need to buy a new cooler (cuz a friend of mine can sell his one to me-liquid cooling).
So the question is: In order to OC the iGPU of a cpu do i need to upgrade my air cooling system?

 

[vesp3r]

Its always a good idea to improve your cooling after OC. However make sure your PSU can handle the OC

 

[denkoul]

so iGPU OC means that i need to upgrade my CPUs cooling. thanks