Interesting eMac fact....

Discussion in 'PowerPC Macs' started by WGoins88, Nov 11, 2011.

  1. macrumors regular

    Joined:
    Feb 8, 2011
    #1
    Interesting. My 1.42GHz eMac recognizes PC3200 memory as PC3200 memory, not PC2700, like most G4 Macs do. Odd.
     
  2. macrumors 65816

    adcx64

    Joined:
    Nov 17, 2008
    Location:
    Cudi Zone
  3. thread starter macrumors regular

    Joined:
    Feb 8, 2011
    #3
    Ran some Geekbench tests...

    Just the 512 PC2700 module - 780
    Memory performance - 555
    Memory bandwidth - 320

    Just the 512 PC3200 module - 785
    Memory performance - 561
    Memory bandwith - 325

    Both Modules installed (1GB) - 798
    Memory performance - 580
    Memory bandwidth - 355

    Even though the 3200 module runs at 2700, the results are interesting nonetheless, considering both modules are Nanya brand, 2.5 latency and same clock timings, just different speeds.
     
  4. macrumors regular

    Joined:
    Oct 5, 2009
    #4
    considering that the 3200 would be timed and set for a 3200 buss you can assume that with the left over speed it could run the 2700 buss right to its max, at least, in theroy (and so it seams irl).
     
  5. macrumors 65816

    adcx64

    Joined:
    Nov 17, 2008
    Location:
    Cudi Zone
    #5
    PC2700 should run at its max as well. There's no need for the extra speed as the computer cannot utilize it.
     
  6. macrumors 68020

    zen.state

    Joined:
    Mar 13, 2005
    #6
    The only actual advantage to using faster rated but still compatible memory is that you then have it if you ever get a Mac in the future that would use the speed it's actually capable of. In terms of performance it won't help at all to use 3200 in a 2700 slot. Those very slight increases you see could only be from the timing. Timing is the only way you can make your memory faster.

    At OWC for example with many different Macs they offer slower timed memory for less than the highest performance options. The differences are so minimal that it's not really worth bothering.
     
  7. macrumors 65816

    adcx64

    Joined:
    Nov 17, 2008
    Location:
    Cudi Zone
    #7
    Exactly, faster timed RAM only shows the difference in milliseconds, which really cannot be distinguished when you use the computer.
     

Share This Page