L3 Cache and MP

Discussion in 'Macintosh Computers' started by actripxl, Jul 5, 2003.

  1. macrumors regular

    Joined:
    Aug 24, 2002
    Location:
    Chicago, IL
    #1
    Ok guys I have a question, does L3 really make that much a difference in performance and does a second processor really have that much of a gain.
     
  2. acj
    macrumors 6502

    Joined:
    Feb 3, 2003
    #2
    Yes and no

    L3 is a cheap way to increase performance, but a bigger L2 is much better.

    MP will boost software that is programmed to take advantage of it. It will boost multitasking speed even when running several applications that are NOT programmed to take advantage of two CPUs.
     
  3. macrumors 6502a

    macphoria

    Joined:
    Nov 29, 2002
    #3
    Even though acj pretty much answered the question, I'll add my own opinion. Yes multiple processors can help boost the performance. But as far as I can tell, I can really tell the difference only when I do video editing and rendering. Otherwise, I can't really tell the difference in other usage. There still could be performance boost, it's just that it is not significant enough for me to notice.
     
  4. acj
    macrumors 6502

    Joined:
    Feb 3, 2003
    #4
    And for me

    I do a ridiculous amount of work in photoshop. Often I run actions on 100+ images, and this can take 30 minutes or more. With Dual CPU's the computer remains extremely responsive while photoshop chugs away (still fast) in the background.

    Another common and correct answer to the question is that one 4GHz CPU would be better 99.99% of the time than two [edit] of the same type of CPU at 2GH.
     
  5. macrumors 65816

    XnavxeMiyyep

    Joined:
    Mar 27, 2003
    Location:
    Washington
    #5
    Re: And for me

    Unless that 4 GHz CPU happened to be a Pentium 4, and the Dual 2 GHz was a G5. Then it would be about half and half.
     

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