@Fox5
You have some good points. But, whether we need FP64 or not, doesn't matter. When you buy something that is expensive and claims to be the ultimate, most-advanced, fastest card on the planet, you come to expect to have these features. Clearly, as a Titan successor, Titan X falls short in a few areas (FP64, cooling and noise, which doesn't seem to reflect in reviewers scores, though). The original Titan was truer to Nvidia marketing claims. Furthermore, that 10 bit color per channel support would help make that claim to be something based on, so instead of having two cards, you could just have one nvidia card.
Titan X is a much more compromise product, but Nvidia is still trying to sell it, like the best all-in-one card ever. Which it clearly is not. I am just annoyed by the Nvidia marketing, that is. Especially, as this has happened before with the 970 card. It shines as a gaming card and was designed as such. But Nvidia's business ethique along with the marketing claims (which some seem to be just hot air) make a big dent in Nvidia's reputation, at least, in my eyes.