I have just got a new 52cm full HD monitor and am running duel core proc and full Ram on vista, which graphics card is better to use I have a G force GT220 can be connected with HDMI, OR a Gforce 9800 GTX (512) which cannot be connected HDMI??
Do you plan on running sound through your monitor? if not it doesnt matter if you use an HDMI cable or a DVI cable. A 9800GTX is significantly more powerful than a GT220, which was designed to be a low power OEM graphics card.
Performance for gaming and just about everything will be a lot better with the 9800GTX
DVI and HDMI carry identical signal, the quality of the signal is identical unless you choose to buy a crappy quality cable and run it a very long distance. The only real benefit to HDMI is a smaller cable and connector, and the ability to carry sound through the same line.