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what cards can drive multiple 2560x1600 screens?

Discussion in 'Nvidia' started by bruce56, Jul 25, 2013.

  1. bruce56

    bruce56 Guest

    A former classmate, now working for an oil company, boasted that they
    have a workstation with 3 monitors - nothing new there.
    But he said each monitor is 2560x1600.
    So I presume this system has two cards. And since DVI can only spew out
    1920x1200 (unless you choke the refresh rate), these must be using
    DisplayPort. Is there a card with dual displayports that can pump out
    8 megapixels worth of screen?
    bruce56, Jul 25, 2013
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  2. Plenty. Some hints:

    - Look into Dual Link DVI
    - Check out the latest high-end cards of NVIDIA in both the GeForce as
    well as the Quadro range.

    You could probably realize the mentioned 3 displays using a single card.


    Patrick Vervoorn, Jul 25, 2013
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  3. bruce56

    Paul Guest

    Since this came up recently:

    1) ATI high end card with six ports on the faceplate.
    ATI Eyefinity allows up to six monitors. And typically, you
    might have to use DisplayPort for four of those. In other words,
    two ports are "full flavor" of dual head (multiple options), while
    the four others are only DisplayPort.

    This one is all DisplayPort (six of them).


    Mixed bag. Should run three monitors for you, somehow. Has two DVI dual-link
    conventional dual head, plus two DisplayPort and one HDMI, for max 5 monitors.


    ATI includes a table, for converting DisplayPort, to other standards.
    When they list 4096x2160, it isn't likely 60Hz refresh. They can
    cheat by doing 30Hz (useless). You have to use some care, when reading
    resolution specs, due to the cheaters out there. Who wants to game at
    30Hz ? They should really include a refresh number too.


    2) A single NVidia card is dual head (as are many cards from the last
    12 to 15 years). So you can drive two monitors. And a dual link DVI
    can do 2560x1600 (see DVI article on Wikipedia). Maybe a recent version
    of HDMI can do that too. DisplayPort right now, I think that sets the
    record for pixels.

    With the single NVidia card, you can drive two monitors.


    "Example display modes (dual link):

    WQXGA (2,560 × 1,600) @ 60 Hz with CVT-RB blanking (2 × 135 MHz)
    (30-inch Apple, Dell, Gateway..."

    So dual head times dual-link DVI would be two 2560x1600 @ 60Hz monitors.

    3) With NVidia surround, you use two cards in SLI, and you can run
    up to three displays off that. Don't really know the details of
    what driver does that. Or what other card configs (triple SLI, quad SLI)
    might be possible. There is a web page (configuration checker),
    that gives more details.


    (Configuration checker)

    Sample output for a GTX480 pair.

    "3D Surround Configuration Tool

    Geforce GTX 480, 2-way SLI, 3D Surround, Landscape

    GeForce GTX 480 2-way SLI With 3D Surround (Landscape)

    Maximum Resolution: 5760x1080
    Maximum Resolution (Bezel Correction): 7680x1080
    Maximum number of displays: 3 in Surround and any number
    supported by additional cards"

    While there are also hardware devices for splitting a single
    port output, into two monitors, that won't achieve any extra

    On the latest 3840x2160 display, the back of the unit uses two HDMI
    in span mode, or it uses one DisplayPort, which tells you which
    connector standard is more capable. Asus apparently doesn't build
    this monitor from scratch, and it's rebranded. Might have their own
    firmware in it, you never know. So if you absolutely needed to buy
    one, it is available as Sharp PN-K321.

    "ASUS PQ321Q Black 31.5 inch, 3840 x 2160 $3500.00"


    Paul, Jul 25, 2013
  4. bruce56

    Paul Guest

    Just saw this and thought I'd pass it on.


    "Initially Microsoft tried to run the 11520x2160 resolution setup using
    a single Radeon HD 7970 card but according to the firm the performance,
    unsurprisingly given the resolution, was found wanting. Microsoft then
    set up a three-way Crossfire configuration of Radeon HD 7970 cards and
    claimed that with high settings save for shadow details and particles
    it managed an impressive 62 to 67FPS."

    So there are crazy people out there.
    People with unlimited budgets :)

    Well, not exactly. Monitors were on loan. Those are the $3500 or more
    a piece monitors.


    "several Sharp PN-K321 4K Ultra HD displays that
    I had on loan for a short period of time"

    Ball cap is extra. Maybe it was on loan as well.


    Paul, Jul 28, 2013
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