Man of Honour
You forgetting one thing though. If those result for the top card Hawaii XT beating Titan is indeed true, it would mean AMD's 2nd card down the Hawaii Pro would be beating the GTX780 at sub £400 price range.
But of course, all the pricing and performance are just guess work/rumors, best wait for NDA get lifted and the dust get settled...
We really need to see a full set of benches and also find out what the overclocking headroom is first.
What springs to mind with only having half the info/rumours is the 4960X fiasco. If we went on the pre launch info, it looked like the 4930/4960 were going to be worthy upgrades. When we saw the actual benches it turned out that most of these new CPUs were poor overclockers compared to SB-E.