Do 7900 GTs come with 1.1 ns mem?

I am planning on stepping up through EVGA for a standard 7900 GTX; it seems both of their GTX models possess 1.2 ns mem. I would prefer to have the 1.1 ns, but I will be getting the 7900 GTX through EVGA for a 7800 gt and $180. This is probably the right way to go in terms of price/performance, would most of you agree?