Hello i will build a new pc for around $350 and i have two choices for cpu. G4560 and G4600. Firstly i will use the system with igpu and later i will buy a external graphics card. Is hd630 that much bettter than the hd610 or its not worth it to spend extra $20-25 on g4600. I will use the system with dual channel memory running on 2133mhz.