USB Monitors Vs. Duel head Graphics Cards

Posted on 2007-10-15
Last Modified: 2010-04-26
Can anyone point me in the direction of any discussion on USB Monitors and any advantages / disadvantages vs. Dual Head Graphics Cards.
I am not sure that USB only will work for my place of work as we do some intensive graphics work, but I have been unable to google any sensible discussion on the subject. To be honest the whole USB monitor appears to be too good to be true, so my question is "IS IT?"
Thankyou, Kevin
Question by:kevinsmith121
    LVL 42

    Expert Comment

    by:Davis McCarn
    I won't even try to find any discussions; but, will add that the bandwidth for USB is a tiny fraction of even PCI, much less AGP or PCI Express and the overhead of not having a dedicated ram/GPU would bring the system to it's knees.
    LVL 1

    Author Comment

    Thankyou Davis,
    Allthough this may be common sense for some I am sort of in a position where I need to be able to proove the point with facts and figures. Does anyone know of any data?
    LVL 42

    Accepted Solution

    Neither seems to have much on performance numbers; but, the TomsHardware one does speak of noticeably slower performance.
    IMHO, it would be much cheaper to get a PCI display adapter (even a cheap one will run rings around USB), more stable, and be more versatile.  TomsHardware notes that other USB devices canl cause a huge performance hit.
    LVL 1

    Author Comment

    Thankyou, there was some interesting info in there?

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