I can't decide on whether to get a 660 Ti or a 670. I am not planning to SLI or overclock either the i5-3570k CPU or the graphics card. The only distinguishable difference that I can see is that the 660 Ti is 192 bit and the 670 is 256 bit, although I am not sure what exactly that is or how it would translate to the performance.
Well, at the moment I am not planning on overclocking since I am going to have to research it and plus I won't have any specialized cooling in my computer (I haven't built it yet but am close to getting it). I am probably going to get the 670. Thanks!