I have a Sager custom laptop. It has i7 and GeForce Gt 650m 1GB. Now, it has a vga and an hdmi port on the side. My question is, if I hoop up an external monitor via the vga input/output, will that be done or use the integrated gfx from the cpu or the 650m (I only turn on the 650m when I play games) ? I apologize if the question is "noob" like