I built my computer a little over a year ago. I have the 4GB version of this graphics card. I don't want to upgrade right now, but sometime in the future I would like to. The thing I don't really get is, I've been comparing a lot of graphics cards that are a bit more pricey than the one I bought. I compare the specifications and they are all almost exactly the same. For instance the GTX 970 is said to be a great card, and It's over $100 more than I paid for my card. Yet the specifications seem to be identical. Is there something I'm missing? How do I find a card that actually does perform better than my own?