This. Anyone calling the 680 a high end card knows nothing about GPUs.
Anyone not excepting that the 680 was the 'flagship' 'high end' nvidia GPU at launch doesn't properly understand the English language! ..... You don't get to redefine words to suit you own weird world view and not get called on it.
It was a new performance tier as it was an improvement on the outgoing 580gtx. That Nvidia, for marketing reasons, decided to bring in the Titan and Ti cards to delineate two new performance brackets above the xx80 and xx70 in a given series of cards is irrelevant to whether the 680, at launch, was a high end flagship card as nvidia didn't have any ti or titan cards out at the same time.
The 680, at launch, was the high end nvidia flagship gpu end of.
We don't rate gpu's by their memory bus width or die size (and unless you are a some sort of weirdo with a Freudian esque size obsession) It's their ability to render as much as possible quickly that maters.
Hence whatever nvidia consumer card, at a given time, can render stuff the quickest is by definition their high end flagship card. (albeit the 'high end' part is dependant on what else is put on the market at a given time)
The ATI HD2900XT was ATI's flagship consumer gpu at launch with a wide memory bus and a big die with lots of transistors (
more than the 8800gtx ultra) and it sucked because it performed badly vs the completion at launch. This is not true for the 680.... Die size and memory bus width are not, in of themselves, relevant to whether a card is high end or a flagship... Its the performance and pretty much only the performance that matters as a qualifier for a card being 'high end' or a flagship.....
(You could, correctly, say that a company produces no 'high end' products ... As this is a comparison with other products on the market unlike 'flagship' which only refers to products from the same company... For example you might say that AMD currently do not produce any high end gaming/consumer GPU's as Vega 64 is their 'flagship' but not performance competitive for gaming vs nvidia's flagship)