http://www.kroesbergens.com/portfolio my opinions, conjectures, and thoughts Sun, 08 Jan 2012 15:13:04 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 http://www.kroesbergens.com/portfolio/2008/10/displayport-vs-hdmi-my-perspective/ http://www.kroesbergens.com/portfolio/2008/10/displayport-vs-hdmi-my-perspective/#comments Mon, 06 Oct 2008 23:56:52 +0000 Wes Kroesbergen http://portfolio.kroesbergens.com/?p=43 So… Apple really brought into the public eye the Display Port standard last week with their complete switchover to the DP standard. I confess I hadn’t known anything about this standard before now. However, I’ve done some reading on Mini DP vs HDMI, and thought I’d share my perspectives.

Comparison

• Similar Resolution: DP supports up to 2560×1600 resolution over 3 meters, but is theoretically capable of more. HDMI is finally up to the 2560×1600 resolution as of the latest 1.3 standard.
• DP uses packet technology vs frequency transmission for HDMI. This allows encapsulation of the bits of audio and video simultaneously, vs. a separation of frequencies for HDMI.
• Because of the packet type technology with DP, the protocol supports transmission over Fiber Optic cables. This allows for theoretically higher throughput capabilities
• Because of the packet technology, there is a higher attenuation length for DP than for HDMI. As HDMI cables get longer, the signal becomes less strong and less reliable.
• DP has a higher throughput than HDMI. DP supports up to 10.8GBps at 2560×1600 over 3 meters. HDMI only supports 400mbps over 3 meters.
• Because of the packet technology, DP allows feature additions.
• DP does not require control circuits, and can drive displays directly. This allows for thinner screens.
• DP allows multiple video streams over a single connection.
• DP is open source… HDMI is a licensed format.
• DP does not require content protection.

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