DVI and HDMI carry the same signal, HDMI also happens to carry digital sound as well. There is no difference in video quality going from HDMI to DVI, or vice versa. It's the same.
HDMI and DVI single link 60-Hz LCD can display a resolution of 1920 x 1200, while a DVI dual link can display a resolution of 2560 x 1600. The only time single link DVI/HDMI will choke is on resolutions above 1920 x 1200 60hz.
VGA is another ball of wax. No need for VGA if you have a DVI/HDMI connector to use.
Edited by dpunisher, 10 June 2010 - 03:05 PM.
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