It makes little difference to the mining community if this card is delayed. It is too expensive and does not mine efficiently on ethereum.
I edited my post.. it's 11mhz per card.
Some extra info.
23,5Mhz @ 60Watt (core down to 850) per card on Ethereum, 25Mhz @ 100watt (stock clock) and 30Mhz @ 200watt (core @ 1100)
Don't think Nvidia can beat that ;-)
But pricy card none the less..
Hmmm...