Hi, i currently have a gtx 560ti from MSI. I was curious whether or not upgrading from a 560ti to a 660ti is worth it. I currently am running 2 monitors. My main one is 1920x1080 and my second is only at 1280x1024. I would be mostly using the card for gaming and some editing. Is it worth upgrading? would i get a better overall framerate on games to make it worth my while? or should i consider getting a 670?