Here is the speed difference (GPU wise)

Discussion in 'iMac' started by slayerizer, Nov 30, 2012.

  1. slayerizer, Nov 30, 2012
    Last edited: Nov 30, 2012

    macrumors 6502

    Joined:
    Nov 9, 2012
    Location:
    Canada
    #1
    I sampled benchmark data from from Windows to give an overview of the power of each cards.

    Take note of the notebook resolution, results should be slower with higher res found in iMacs.

    Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024

    Here are the average score for each card

    Cards found in 21"
    Model 1 : 640GT : ~23.9 (ddr5)
    Model 2 : 650GT : ~28.3


    Cards found in 27"
    Model 1 : 660m : ~32.6fps
    Model 2 : 675mx: ~54.2fps
    Model 2 - option 150$ USD : 680mx: no data but 680m did : ~72.9 fps


    for reference

    i7 HD 4000: ~12.1fps (same resolution)


    the CPU comparison is here : http://forums.macrumors.com/showthread.php?t=1499257

    I modified the card name with hyperlinks, so anyone could inspect the source reference I used for this compilation.


    DISCLAIMER
    I have personally no preference and I have no current intention to buy the current gen.
     
  2. macrumors 6502

    Joined:
    Nov 12, 2012
    #2
    are you sure 640m from your scores uses GDDR5 like iMac's one and not DDR3 like most of other manufacturers put into their products?
     
  3. thread starter macrumors 6502

    Joined:
    Nov 9, 2012
    Location:
    Canada
    #3
    4096 MB 645 - 709 / 1000MHz 1024MB GDDR5 ForceWare 23.2 fps
     
  4. macrumors 65816

    Scott6666

    Joined:
    Feb 2, 2008
  5. thread starter macrumors 6502

    Joined:
    Nov 9, 2012
    Location:
    Canada
    #5

    i7 HD 4000: ~12.1fps (same resolution)

    ----------

    I modified the card name with hyperlinks, so anyone could inspect the source reference I used for this compilation.


    DISCLAIMER
    I have personally no preference and I have no current intention to buy the current gen.

    :)
     
  6. macrumors 6502a

    Joined:
    Nov 10, 2012
    #6
    Why did you/someone lower the resolution?

    Nobodies going to be using the iMac lower than 1920x1080...
     
  7. thread starter macrumors 6502

    Joined:
    Nov 9, 2012
    Location:
    Canada
    #7
    I think you didn't read the text in the top message. There are no current imac 2012 gpu benchmark results as we speak.

    For reference, I took results from Windows computers running a popular benchmark tool. The most common resolution for the cards listed here was the resolution you saw listed in the first post.

    This is suppose to give hints about the performance relation between each models.
     
  8. macrumors 6502a

    Joined:
    Nov 10, 2012
    #8
    Sorry, I thought you meant Windows on Boot Camp.

    I guess I'll just wait for a proper benchmark test then.
     
  9. macrumors 6502

    Joined:
    Dec 20, 2010
    Location:
    Berlin
    #9
    Why? This still gives an overview on how well the certain models are going to perform. When choosing the same resolution you actually have a good point of comparison. Besides it show that games using the newest Unreal Engine cannot be run on the 21.5" iMac with native resolution. You will most certainly have to scale down.

    Thanks for the comparison charts!
     
  10. macrumors 6502a

    Joined:
    Nov 10, 2012
    #10
    Because I want to.
     
  11. macrumors 6502

    Joined:
    Dec 20, 2010
    Location:
    Berlin
    #11
    Granted, but then don't say "proper" benchmark, because these are proper benchmarks :rolleyes:
     
  12. macrumors 6502a

    Joined:
    Nov 10, 2012
    #12
    These aren't 'proper' benchmarks of the iMac.

    The only similarity between the notebook he used and the iMac is that they have the same GPU.

    They're not even running the same OS, which could account for a lot.
     
  13. thread starter macrumors 6502

    Joined:
    Nov 9, 2012
    Location:
    Canada
    #13
    just note that Unigine Heaven is NOT Unreal Engine (from Epic). You can license it but they did a tech demo often used to bench video cards. Unreal engine can scale up or down depending of the configuration.

    but I'm still convince it gives a good overview of the different models. I think if you buy 27", the 680mx is one of the cheapest option.
     
  14. macrumors 6502

    Joined:
    May 1, 2012
    Location:
    Seattle, WA
    #14
    Thanks! You can see just how much the 675 blows away everything else. The 680mx will really rock.
     
  15. macrumors 6502

    Joined:
    Dec 20, 2010
    Location:
    Berlin
    #15
    True but it show how well they scale. A 650M is not going to be faster then the 680MX on OSX, otherwise there would be huge software issue. The hardware is comparable and I believe the Unigine is pretty stressing on the GPU and not so much on the other hardware this just be pretty representative of what you can expect on the new iMacs.
     

Share This Page