Sakkura :
I'm comparing value, not straight performance. It doesn't matter if you have the fastest graphics card in the world, if it's exorbitantly expensive it'll be very poor value and should be ignored by everyone who isn't made of money.
The Titan is much worse value than the 780, which is much worse value than the 770. Comparing these new cards to the 780 in terms of value is giving them the benefit of the doubt. They really should deliver better value for this to be an interesting launch.
Now, there is no reliable data as to the performance they'll offer, and even the pricing is not exactly clear. So I'm not counting them out, just saying that with these apparently high prices, their performance had better be impressive if AMD wants them to be relevant.
I'd like to point something out here: Value is both a 'function' of performance/cost, as well as a function of desire (need/want) over cost.
while you're right that the Titan is terrible value over the 780, and the 780 terrible value over the 770, the only reason we love the 770 so much is because it is CAPABLE of playing just about every game on the market at the generally accepted settings: 1080p, highest textures with some amount of AA. if we're talking absolute performance/cost only, something around a Radeon 7850 is actually the top of the market.
If the new gen consoles, combined with the rise of 4K, bring our need/want for better GPUs to a new level, the value equation will shift toward the gtx 780 range. I'm not made of money, and neither are most of the users here, but it's one thing to talk about high-end cards that we don't need, it's a whole other thing when the card we have forces us to switch to medium/low settings. it's not like all of us here on Tom's are working minimum wage jobs here. many of us CAN afford a Titan if we really REALLY want to; it's just a terrible idea atm. Imagine how that'd change if the Titan is the only card on the market that would run skyrim/bf3-4/metro/sleeping dogs etc etc at high settings.
my point is, as demand for higher-end GPU rises, Nvidia and AMD will do everything they can to milk our desires