can either of them run farcry 3 on max settins when paired with an i5 3570k processor
The i5-3570k doesn't bottleneck the card, and both will have about the same performance, the other card has a dual cooling system, it might be better in terms of temperatures.
See here for the 660 ti performance : http://static.techspot.com/articles-info/615/bench/1920_02.png
The asus card is now too much expensive, here's an updated list :
Reference card : http://www.newegg.com/Product/Product.aspx?Item=N82E16814133466
Non reference card : http://www.newegg.com/Product/Product.aspx?Item=N82E16814127697