Since you are using a TV for your monitor, your resolution is most likely a lot lower than you might expect. The 560 really shines at 1920x Res, but your TV is most likely around 1400x800ish. Be sure to look up your Tv's resolution. I would recommend looking into the GTX 550 TI, which really shines at 1600x1200 Res, so would probably do well on your TV. It is typically $100+ less than the 560.