Mac Pro 2008 CPU Upgrade - need matched CPU beyond stepping?

Discussion in 'Mac Pro' started by haralds, Aug 22, 2014.

  1. haralds macrumors 6502

    haralds

    Joined:
    Jan 3, 2014
    Location:
    Silicon Valley, CA
    #1
    I am looking to upgrade my Mac Pro 3,1 from 2.8Ghz to 3.2Ghz. Likely not more than 15% performance on crunches, but it might feel good for a bottom end to max this thing out.

    Do I need to buy matched processor or just the correct stepping - X5482 SLANZ?

    Seems like the stepping is all that is important. The difference is about $80 on eBay. But the whole exercise is mainly bragging rights anyway...
     
  2. brand macrumors 601

    brand

    Joined:
    Oct 3, 2006
    Location:
    127.0.0.1
    #2
    In 2008 that would have been bragging rights, but definitely not now. Especially since the current Mac Mini can out perform the 3,1. The very minimal increase in processing power will only be realized when the CPUs are at 100% utilization.
     
  3. haralds thread starter macrumors 6502

    haralds

    Joined:
    Jan 3, 2014
    Location:
    Silicon Valley, CA
    #3
    Not answering the question, but you are most likely assuredly correct.

    However, I have found the overall throughput of the Mac Pro 2,1 (an earlier model) to be superior in real life applications with a late model high end MacBook Pro Retina with superior specs...

    Just saying that specs don't always reflect reality, BTW, I have a Mac Mini. But somehow it does not come close to the Pro.

    But you are right about the minimal 10-15%...
     
  4. 666sheep macrumors 68040

    666sheep

    Joined:
    Dec 7, 2009
    Location:
    Poland
    #4
    Any 2 with correct stepping will do. Don't need to be matched pair.
     
  5. Spacedust macrumors 6502a

    Joined:
    May 24, 2009
    Location:
    Poland
    #5
    Yes, just make sure it's SLA** not SLB**

    SLB** does not work (tested myself).
     

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