192 bit interface vs 256

[funyunwolf]

Considering I've been looking heavily into Video Card technology and how they differ in comparison one thing I was wondering is with the 660ti it has a 192 memory interface (think that is what it is called.) and the 670 has a 256. What does that translate to exactly besides a few fps? And on that note the 680 has a 256 interface as well. Is there a link someone could provide, or an explanation on how all these compare or what it means?

 

[17seconds]

http://www.anandtech.com/show/6159/the-geforce-gtx-660-ti-review/2

 

[Sunius]

Check this GTX 660 Ti review, you'll get a rough idea how much it is behind GTX 670:
http://www.techpowerup.com/reviews/ASUS/GeForce_GTX_660_Ti_Direct_Cu_II/

 

[GreenDutchAlien]

http://www.tomshardware.co.uk/forum/317597-15-question-memory-interface

 

[killerhurtalot]

Basically it means that it won't be able to handle higher resolutions as well as the GTX 670 because of the reduced bandwidth.

Because of the 25% reduction in bandwidth, a stock GTX 660 ti performs between 10-20% worse than the GTX 670 in games. (although a overclock can result in it performing just as well as a stock GTX 670)

 

[funyunwolf]

Basically it means that it won't be able to handle higher resolutions as well as the GTX 670 because of the reduced bandwidth.

Because of the 25% reduction in bandwidth, a stock GTX 660 ti performs between 10-20% worse than the GTX 670 in games. (although a overclock can result in it performing just as well as a stock GTX 670)

So far what I've gathered then is on a single monitor 1080p the 680 is overkill, but the 670 is feasible albeit kind of a waste. With that in mind what is the difference between a standard model and a FTW (For the win edition)?