I'm thinking of upgrading my graphics sometime soon, so I was wondering, would I get better performance from upgrading my current (9800gt) card to SLI, or just buying a new card? (note-I currently dont have an SLI ready mobo, but don't factor that in because I'll be upgrading that before I upgrade my graphics) My resolution is 1680x1050, if that helps any.
I checked a PSU calculator, and it seems that my 500 watt PSU is more than enough for the task. This brings me to my second question - when I purchase a motherboard, how will I know if it supports SLI? To my knowledge, only those with Nvidia or new Intel chipsets do, but I don't know which ones. Also, is Crossfire supported on all of these platforms (in case I decide just to get a new ATI card)?