external screen question

Discussion in 'MacBook Pro' started by hemagoku, Jul 7, 2012.

  1. hemagoku macrumors member

    Joined:
    Apr 19, 2012
    #1
    is it possible to use the mbp screen and an external screen, with both on different resolutions ?, on extend mode not mirror ? (1080p for the external, 1280*800 for the normal mbp screen)
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    Yes, that is possible. The external monitor can be up to 2560 x 1600 pixel according to the specs Apple listed on its website.
     
  3. hemagoku thread starter macrumors member

    Joined:
    Apr 19, 2012
    #3
    thank you ^^.
     
  4. houkouonchi macrumors regular

    Joined:
    Oct 31, 2005
    #4
    It an drive 3840x2400 and likely even higher resolutions. All that matters is the mode is within the constraints of the hardware limits (probably 16384x16384 on the retina) and within pixelclock spec.
     
  5. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #5
    The OP was talking about the 13" MBP and not the MacBook Pro with Retina Display, thus the maximum external resolution is 2560 x 1600, unless you are able to hack that integrated graphics processor (IGP), as that is the limit Apple put in to drive a 30" display at maximum (I am not talking about HDTVs here).
    I don't know what you mean with 16384 x 16384 though, as that is 268 MegaPixel, and I don't know of any video card being able to drive that available on the free market.
     
  6. houkouonchi macrumors regular

    Joined:
    Oct 31, 2005
    #6
    I am sure the mac book air can run 3840x2400 as well since it has a dispayport/thunderbolt right? My retina mbp also has the intel graphics too and I was able to. The guy did say mbp which is why I was thinking it was a macbook pro.

    Odds are if it cna do 2560x1600 it can do 3840x2400 as well. Apple did not 'put in limits.' The limits are by the hardware from the actual manufacturer (intel/nvida/amd).

    The cards usually do have a hard-set maximum area they can render stuff/work at which has nothing to do with what monitors you are using (really).

    For example at work I have 3840x2400 + 2560x1440 + 2560x1600. They ar horizontal which nets me 8960x2400 desktop area. On older generation nvidia cards there was a 4096x4096 limit which did not allow me to run dual monitor with 3840x2400 + 2560x1600 because it was 6400 with. Newer cards were 8192x8192 limit and now with the gtx 260's and above the limit is 16384x16384 (newer ones may even be higher). This is the absolute limit of resolution/display area that the hardware can support. What resolution you can run a monitor at comes down to interface type/bandwidth limit. With newer display port you can push a pixel clock up to 480 MHz which is enough to drive 3840x2400. If you run at a lower refresh rate you can run that off even dual link DVI or even single link DVI bandwidth limitations.

    Video cards can run a lot more than people thing. I have ran 3840x2400 off a really old nvidia 6800 GT AGP video card. Even those old ass cards can push 3840x2400. Why do you think new macbook could not?
     

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