Stuck between two graphics card choices.

[LevelUp_]

I currently have a GTX 550 Ti that I picked up a while back, I want to replace it with a new card. I am stuck between the GTX 650 Ti Boost, which I can get right now for around $160, and the GTX 660, which I can get for around $190. Is the GTX 660 worth the extra $30? I don't want to spend the extra money if it won't even make a difference..

 

[mace200200]

http://www.anandtech.com/bench/Product/782?vs=783
It mostly depends on your resolution, if your playing 1080p, then you want the two gig card at that point I think your better off getting a 660. If your on a smaller res, a single gig is enough and they'll cost a bit less. I plan to upgrade to a 660 myself in the near future, but don't let that affect your decision.