Want to buy new HD Monitor for computer don't know if it will work with video card?

So I am thinking about buying a new flat screen monitor to go along with my old CRT computer so I would have a dual monitor view between the two of them. I just have one thing I am not to sure about. The monitor that I am looking at has and HDMI connectivity and my old CRT has VGA. I have a video card with 2 DVI ports and and onboard moterboard video card with 1 HDMI port and a VGA port(non onboard better) So my question is if I use my onboard-video card for the HDMI port will I still get the Video quality from my non onboard video card?|||No, you can use the discrete video card or the onboard integrated graphics not both.