Way back in July of 2012 Tim Verry wrote a news story on PC Perspective discussing the upcoming Falcon Ridge and Cactus Ridge Thunderbolt controllers, due out in 2014 and 2013 respectively.  It appears this is coming to fruition at the NAB Show 2013 this week in Las Vegas, with two new variants of Thunderbolt on display by Intel.

Cactus Ridge, now known as the DSL4510 and 4410 controllers will add support for DisplayPort 1.2 when connected to native DisplayPort displays while also improving power management and lowering the implementation costs for hardware designers. 

Maybe more exciting is the prototype of next-generation silicon for Thunderbolt, code named Falcon Ridge, that runs at 20 Gbps, double that of current Thunderbolt implementations.  Intel promises that this will enable 4K video file transfer and display simultaneously.  As expected, production will start in late 2013 with ramping in 2014.

Thunderbolt's integration into the consumer market has been slower than expected but professionals are seeing more and more uses for this kind of extreme bandwidth as the video production pipeline prepares for large scale 4K distribution.  We are using Thunderbolt internally at PC Perspective for our Frame Rating capture based graphics testing running at nearly 800 MB/s we have been happy with the results.