GPU performance can not be denied. I've seen similar results in the article dedicated to GeForce GTX 670.
If we look strictly to performance, the GTX 660 Ti is the level of a Radeon HD 7950. If I overclocked 660 Ti, then in most cases have better results.
put it shortly, the GTX 660 Ti is the ASUS customization is very good
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https://www.asus.com/images/award_logo/1328/8308.jpg
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