... and heeeere's K4000 (and friends)! http://www.studiodaily.com/2013/03/nvidia-ships-four-new-quadro-graphics-cards/ Cheers, -Gray
It will be nice to see how these stack up, and where they are the most useful, but untill the K6000 comes out, for the moment the Q6000 is still the most powerful card in the Quadro line-up.
An interesting graphic from ProMax comparing the K series to the Q series, and notes about K vs. GEForce http://image.promax.com/promonewsletter/postproductionbox/campaign9/campaign9.html