text: how do i know if the graphics card i am buying is compatible with my computer? my computer in general is a pcv-rs420 vaio. it runs a 2.8 intel ht processor 512 ram(upgrading) a 64mb 9200 radeon graphics card three pci ports 1 agp port motherboard is asustek computer inc. p4sd-vx 200 megahertz  and i am wondering how i can figure out if this computer can run a e-geforce 5500fx 128mb agp 8x at this http://3btech.net/bfgfaovgefx11.html just make sure the connector is either pci or agp. now, check the video cards specs. if i was you i would go to www.tigerdirect.com and look up the video card you want to buy. then look for the tab that shows you all the specs and requirements. your computer will be able to use that video card without any problem, but just triple check.  you are welcome!