Graphics card upgrade
First off is there a comparison chart of any kind showing which GeForce cards are better then others? For example if I wanted to tell if my 1GB GeForce 8500 GT was better or worse then say a 1GB GeForce 8800 GTX... how could I find that information for multiple video cards? Same goes for Radeon. I'd like something so I know what I am getting is not the same and/or worse then a card I already have.
I'd like to upgrade my card from a 1GB GeForce 8500 GT to something a better, but I'm afraid I may go backwards or get something exactly the same with a different name.