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So what is the difference anyway?  As it seems that most electronics are made up of HDMI ports, display ports are breaking its way through the market as vendors try to cut costs.  What most people do not know is that HDMi is a proprietary device and vendors must pay a royalty fee to the makers of HDMI as opposed to Display ports which prides itself in being free.  

HDMI is comprised of 3 video channels and audio channels all with a common clock.  Display port, however, has 4 channels all with its own independent clock.  Beyond that, I feel that they're almost identical and I haven't really preferred one over another.  You can find out more information between the two on this site here:  http://www.cepro.com/article/displayport_vs_hdmi_similarities_and_differences/