I am having an average computer system. I am been using this system from few years. I donít have any hardware problem with my computer so no issues related to it. I am just thinking to upgrade my graphic card to a newer one, hopefully I guess to NVidia GTS 250. I am having dual core processor and on this system I am using NVidia 6400gt graphic card, but I am having doubt that will this card work on my dual core processor or it requires quad core processor to work.