Which is faster My Quad 2.5 Ghz G5 or the new 27" imac?

Discussion in 'PowerPC Macs' started by Little Endian, Nov 2, 2009.

  1. macrumors 6502a

    Joined:
    Apr 9, 2003
    Location:
    Honolulu
    #1
    I'm thinking about purchasing a new 27" imac 2.66 Ghz i5 or the 2.8Ghz i7 option, but I would like opinions about how much faster it would be compared to my 4 year old Quad 2.5 Ghz Power Mac G5.

    My Quad 2.5 G5 has 4Gb of ram and a Nvidia Geforce 7800GT GPU. For comparison this setup is faster in almost every single way compared to my Unibody 15" MBP 2.66Ghz Core 2 Duo, 4GB RAM, with 9600M GT. In many cases the G5 is easily twice as fast, and in few Rosetta app situations it is 3-5 times faster.

    So the question is, if I replace my Power Mac G5 with a new quad core i5 or i7 imac, will I finally see performance gains that could justify replacing my trusty G5 or must I buy a new Mac Pro to see performance gains that are considerably better.

    I would rather not purchase a quad or Octo core Mac Pro as the imac seems to be much more cost effective, however I have not been able to find any benchmarks that effectively compare the Quad G5s to the latest Intel offerings. Any advice or opinions would be helpful.
     
  2. macrumors 68020

    Joined:
    Oct 12, 2006
    #2
    http://www.primatelabs.ca/blog/mac-benchmarks/
     
  3. macrumors member

    Joined:
    Oct 17, 2009
    #3
  4. nek
    macrumors member

    Joined:
    Aug 26, 2003
    Location:
    Canada
    #4
  5. macrumors 68020

    gugucom

    Joined:
    May 21, 2009
    Location:
    Munich, Germany
    #5
    Hyperthreading. So they are talking virtual cores.
     
  6. macrumors member

    Joined:
    Oct 17, 2009
    #6
    Thank you, I didn't realize this :eek:
     
  7. macrumors 6502

    Joined:
    Sep 15, 2008
    #7
    I think the iMac would be a cost effective upgrade, but there will probably be a Mac Pro with 12 cores released early next year. That is 3 times more CPU power than the iMac. This is based on Intel's new 6-core Xeons being available.
     
  8. macrumors 65816

    300D

    Joined:
    May 2, 2009
    Location:
    Tulsa
    #8
    This information is based on a very flawed benchmarking utility that focuses only on CPU, memory and drive performance. Depending on which GPU you have, the quad G5 will be faster than any C2D machine.

    It will be slower than an i5 an i7 iMac and all Mac Pros but the quad 2.0ghz.
     

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