One 4870 vs Two 3870's

Discussion in 'Mac Pro' started by sparkie7, Mar 22, 2009.

  1. sparkie7 macrumors 68000

    sparkie7

    Joined:
    Oct 17, 2008
    #1
    They both cost about the same. Wondering if anyone know's which setup is better?

    Seems the 3870's are good for Pro Apps, but have noise/fan issues. I'm thinking of getting the 4870 if its just as fast as getting two 3870s

    How is the 4870 for Pro Apps?
     
  2. Tallest Skil macrumors P6

    Tallest Skil

    Joined:
    Aug 13, 2006
    Location:
    1 Geostationary Tower Plaza
    #2
    Graphics cards don't "combine" power when you have more than one. You would get no benefit from having two 3870 except the ability to run four monitors.
     
  3. iObama macrumors 6502

    iObama

    Joined:
    Nov 16, 2008
    Location:
    SF
    #3
    Getting two 3870s doesn't make your graphics faster, it just gives you more outputs. If you only need 2 outputs, get the 4870 since it's faster than the 3870.

    EDIT: Tallest beat me to it.
     
  4. sparkie7 thread starter macrumors 68000

    sparkie7

    Joined:
    Oct 17, 2008
    #4
  5. Pressure macrumors 68040

    Pressure

    Joined:
    May 30, 2006
    Location:
    Denmark
    #5
  6. sparkie7 thread starter macrumors 68000

    sparkie7

    Joined:
    Oct 17, 2008
    #6
    for Gaming yes, but Not for Pro Apps and Cor Image tasks it seems (on a MP 2008)

    http://www.barefeats.com/nehal06.html
     
  7. Pressure macrumors 68040

    Pressure

    Joined:
    May 30, 2006
    Location:
    Denmark
    #7
    I don't hope you base your assumptions on a difference of 1 frame per second between the Radeon HD 3870 and the Radeon HD 4870 or the Geforce 8800 GT.

    In time the Radeon HD 4870 will surely be the better overall choice.

    For it to make sense we have to see more benchmarks than the two presented here.
     
  8. kabunaru Guest

    Joined:
    Jan 28, 2008
    #8
    ATI Radeon HD 4870 could have better drivers, though.
     

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