I recently upgraded from a 660Ti to a 970 which doubled my benchmark scores. I always use This chart to compare cards across brand and generation, and to see if an upgrade will be meaningful. Witcher 3 runs at a stable 60 despite having an older Sandy Bridge CPU/Mobo, though I only played a few hours so far. If the cards become $30-50 cheaper after next week, that's about what I wanted to be paying. Just make sure if you do upgrade that you have the right power connections available as you might be going from a 2x6 pin to a 1x6 and 1x8 pin, though I think the card I ended up getting was also a 2x6, so just check the specifications.