Thunderbolt connectivity, Intel launched to complement the new USB 3.0, offering a high bandwidth of 10 Gb / s, PCI-E combines the DisplayPort standard in a simple and cheap. Use copper wires, more than three feet long, attached to a miniDisplayPort, and allow series-connected devices.
And it was introduced commercially by Apple to replace outdated Firewire. But even with such a low penetrance, Intel added the words we speak the descendant of Thunderbolt, a connectivity yet unnamed, sometime in 2015 which promises speeds of 50 Gb / sec, the distance of 100 meters.
But for such performance will require the adoption of fiber optics, copper nemaifacand face. And that could make these two connectivity (Thunderbolt and successor) incompatible. Not that this would be a problem for Intel ...