If you compare the size of the fixing bolts on the cooler, there is no way that that is a card of similar class. The card chiphell have seems to be a half height one, explaining the chips ont he back. Look how short the card is if you compare the length after the PCI-e connector.
And I don't personally believe that memory needs water cooling, a RAMsink on each is fine, only the voltage regs and cores seem to need "active" cooling, from what I have seen, but then again I have not had anything GDDR5 at up to 5Ghz :)