HDMI or DVI or VGA: Which gives best PQ?

Discussion in 'Desktop & Laptop Computers Forum' started by Dadslo, Feb 3, 2009.

  1. Dadslo

    Dadslo
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    Hi,

    I recently bought my daughter a laptop which had an HDMI out connection.

    She will be connecting to a 22" monitor.

    In terms of best piicture quality, which connection is best HDMI, then DVI, then VGA?

    Or will they all do the same job...!!!

    Cheers - Kevin.
     
  2. andy1249

    andy1249
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    For Picture HDMI and DVI are pin for pin compatible , so regardless of the cable the same picture signal will reach the monitor , so they are exactly the same.

    Depending on whether the monitor has built in speakers , HDMI might be better because that can also do sound whereas DVI cannot.

    VGA is analog , and uses a different electronics chain altogether , its still a very high quality signal and should be just as good as the other two in most cases , but because analog is subject to noise , and digital is largely immune I would go with the HDMI or the DVI.

    For both DVI and VGA you need extra cables for sound ( thats assuming the 22 inch monitor has speakers , if not then you need to run extra sound cables anyway )
     
    Last edited: Feb 3, 2009
  3. peackshelb

    peackshelb
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    I'd just add one note to andy1249's post:

    The audio transmitted over HDMI is a digital audio signal.

    If a laptop doesn't have a separate digital audio output jack, then sending the audio out over HDMI can often be the only way to get a clean audio signal. Many laptops' analogue audio outputs (eg standard headphone jacks) are a little noisy and their internal speakers are usually an option of last resort.

    HTH :)
     

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