The chip giant will reportedly give a secret press briefing on March 15th but SemiAccurate claims you shouldn't believe the hype as 3D XPoint is still "woefully broken". The site says the new memory is much slower than promised and barely achieves the write endurance of NAND flash memory. More details over here, I suggest to take it with a grain of salt but it's pretty damning if it's true:
Don’t believe the hype, Xpoint is still woefully broken, broken to the point that we question the business acumen of a company that would release such a product now. Before you think this is idle chatter and backstabbing, lets look at the history of Xpoint. It was announced in June of 2015 as we linked above and SemiAccurate was at the launch. It sounded good. During their Q2/2016 analyst call, Intel made the claim that the product was sampling at that time, something we know to be true because several sources that SemiAccurate talked to had said samples. What Intel didn’t go on to explain was that those samples didn’t actually work, they were broken in one of the most important functions of the technology. They did not have the write endurance of a first gen SSD with no wear leveling. But technically they did ship.