Is 4GB of RAM enough for APU?

Being limited with an extremely low budget. I can only afford 4GB of 2133mhz G.Skill Ripjaws X (2gbx2).

Is this enough for the APU for gaming?

 

yes but 8gb is what you should get I would get 8gb of 1866 or higher speed memory for apu 

Thank you very much for the speedy reply, kind sir!

I can overclock those 1866 memories right? 'cuz I could get those 1866 8gbs for cheaper.