Apple picks AMD Radeon HD GPUs for iMac

Discussion in 'Beyond3D News' started by B3D News, Aug 8, 2007.

  1. B3D News

    B3D News Beyond3D News
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    After using NVIDIA's G84 chips in its MacBook Pro, Apple announced a new version of its iMac today, which will be powered by AMD Radeon HD 2400 and 2600 GPUs.

    Read the full news item
     
  2. iwod

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    Why oh Why?

    They use Nvidia on MacBook, So why not Nvidia on iMac? The only reason i could think off is AMD give a lot of discount to Apple to using ATI gfx.

    Nvidia is much more power efficient, it is also faster. And properly have better OpenGL driver then ATI. Why on earth would they go for ATI?
     
  3. Sound_Card

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    :roll:

    The RV630 and RV610 are very power efficient. Consume less than 50w. ATi's OGL driver is also pretty dang stable and fast.

    - RV630/RV610 consume less power than G84/86
    - Better movie play back thanks to UVD(lower CPU untilization)
    - The former 24inch iMac modal featured a Geforce 7300 128mb with a 64bit bus. The new 24inch iMac modal is stocked with a HD 2600pro 256mb 128bit bus. By no way is the Geforce faster than the Radeon in anything.
     
  4. NocturnDragon

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    This is total and pure speculation, but I think it also has to do with driver developing.
    If they didn't sell any ATI graphic products for this generation, AMD might feel less obligate to keep their part of OS X drivers bleeding edge.

    Using Intel, ATI and nVidia GPU in their lineup, they keep open the door to more possibilities if something bad happened to one of them down the road.
     
  5. INKster

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    The Apple TV uses a Geforce 7300 GS (the mobile variant, i believe) with 64MB of dedicated DDR2.
    That's the smallest casing for any Apple "computer" today (besides the iPhone of course, but then again, the iPhone doesn't run x86 software natively ;)).
     
  6. Dave Baumann

    Dave Baumann Gamerscore Wh...
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    That was also shipping long before HD 2400/2600 was available.
     
  7. iwod

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    According to a few review site, Nvidia PowerVideo offer better Video Decoding Quality then ATI UVD. At the expense of a little more decoding power. ( Less then 5% )

    Unless ATI Catalyst improve the situation a lot. On Wondows Nvidia offer better performance per watt then ATI.

    Must be the long history between ATI and Apple make that decision. As some one have pointed out Driver development was Key to it as well.
     
  8. Dave Baumann

    Dave Baumann Gamerscore Wh...
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    As a note, UVD has nothing to do with "quality" per-se, it has to do with decoding performance - quality comes in another step. As it happens, though, I can point you to other reviews where the opposite is the case and the HD 2000's come out with better quality.
     
  9. fellix

    fellix Hey, You!
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    Speaking of video quality, the HQV test suite shows quite the opposite for UVD and PV.
     
  10. Sound_Card

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    Do you not mean AVIVO and PV?
     
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