2013 imacs with dedicated graphics cards...

Discussion in 'iMac' started by cycledance, Oct 14, 2013.

  1. cycledance Suspended

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    Oct 15, 2010
    #1
    do they all feature the iris pro 5200 integrated as well?
     
  2. Bear macrumors G3

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    #2
    No, they do not. Except for the base 21.5" mdoel, the Intel Haswell processors support Intel® HD Graphics 4600. And does it matter when the dedicated graphics are faster than the Iris Pro?
     
  3. cycledance thread starter Suspended

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    Oct 15, 2010
    #3
    ahh...the 4600...interesting.

    sure it matters, i bet the 4600 is more power efficient and produces less heat for simple tasks.
     
  4. Bear macrumors G3

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    #4
    If you're that worried about heat, get the base 21.5" iMac. Dedicated cards also run efficiently and don't generate much heat when they are not being pushed by a demanding application.
     
  5. cycledance thread starter Suspended

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    Oct 15, 2010
    #5
    i am not. i already ordered a nearly maxed 27". i was just curious.
     
  6. NeoCracer macrumors member

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    Jun 29, 2009
    #6
    The reason that the MacBook Pro has 2 videocards is because it has a battery and can change to integrated graphics for saving battery life when doing light work.

    Since the iMac is a desktop and has no battery, it doesn't need to have 2 cards and can always use the dedicated video card for any kind of work.
     
  7. yjchua95 macrumors 604

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    #7
    The baseline 21.5" is the only one that uses the integrated IRIS.

    The rest of the iMacs, although they have Intel HD 4600 in their Haswells, it's disabled because they have their own discrete GPUs.
     
  8. cycledance thread starter Suspended

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    Oct 15, 2010
    #8
    i wish it could be enabled somehow.
     
  9. Sam2lucky13 macrumors 6502

    Sam2lucky13

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    #9
    why?
     
  10. yjchua95 macrumors 604

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    #10
    I don't see why it should be enabled though. If this was a MacBook, I understand, because integrated graphics can save power. But since it's a desktop, power isn't an issue :)
     
  11. cycledance thread starter Suspended

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    Oct 15, 2010
    #11
    more transistors for opencl?
     
  12. LuckyDuck69 macrumors newbie

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    Oct 16, 2013
    #12
    27" iMac base model CPU

    Get more info on it here:

    http://ark.intel.com/products/76640/Intel-Core-i5-4570R-Processor-4M-Cache-up-to-3_20-GHz

    Intel® Iris™ Pro graphics 5200

    What I think would be cool, since they coupled it with nVidia dedicated GeForce 755M, is if they made it like a PC where the onchip Intel 5200 could be set to handle all PhysX stuff while the 755M focused on main video processing.

    (I know. I know. There isn't many games that support or make use of PhysX. But it would have been a nice little feature to see.)
     
  13. MartinAppleGuy macrumors 68020

    MartinAppleGuy

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    Sep 27, 2013
    #13
    Is the 4600 integrated card also disabled in Bootcamp for Windows?
     
  14. MartinAppleGuy macrumors 68020

    MartinAppleGuy

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    Sep 27, 2013
    #14
    Just tried it and I have found that the 4600 is disabled for Windows as well :)
     
  15. yjchua95 macrumors 604

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    #15
    Yup. If the EFI detects that a dGPU is present, the iGPU is automatically disabled for Boot Camp across all models (and also in OS X for desktops).
     

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