It mentions supercomputers, but also gaming. Supercomputers aren't known for being particularly good for gaming, to put it that way. Is this product just a new gaming GPU, or is it aimed at a different market, even altcoin miners?
In fact, many of the top supercomputers today use GPUs.
Also, I would assume the reason behind supercomputers not being good for gaming is that they are parallelized in ways other than the chips on the GPU (entire machines are networked together via various interfaces). The software behind distributing the processing between several machines, or whatever aspect makes it super, is probably what limits the ability of supercomputers to run video games :0