I agree that it's not totally obvious to new customers, but it's also no that hard: within a generation, the relative performance of the cards corresponds to the order of model numbers. "ti" cards are more powerful than non-"ti".
Between generations, the whole line moves up something like one level of performance, so an (X)70 should be compared against an (X-1)80 and so on.
It's not the simplest thing, but I think most people will do research once the first time they buy a GPU, and then you have your mental model from then on.
Between generations, the whole line moves up something like one level of performance, so an (X)70 should be compared against an (X-1)80 and so on.
It's not the simplest thing, but I think most people will do research once the first time they buy a GPU, and then you have your mental model from then on.