A bit more information regarding this tech and Intel's upcoming "Optane".
http://www.nextplatform.com/2015/10/28/intel-shows-off-3d-xpoint-memory-performance/
http://www.nextplatform.com/2015/10/28/intel-shows-off-3d-xpoint-memory-performance/
http://www.nextplatform.com/2015/10/28/intel-shows-off-3d-xpoint-memory-performance/
http://www.nextplatform.com/2015/10/28/intel-shows-off-3d-xpoint-memory-performance/