The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    533 or 667 ?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by robby21, Sep 6, 2006.

  1. robby21

    robby21 Notebook Enthusiast

    Reputations:
    0
    Messages:
    28
    Likes Received:
    0
    Trophy Points:
    5
    Hello,

    I would like to know what will be better a 533 or 667 Mhz Ram for a i945 based notebook with a Core Duo or Core Duo 2 processor?

    Thank you everybody :)
     
    robby21, Sep 6, 2006
    #1
  2. Tim

    Tim Notebook Virtuoso

    Reputations:
    2,752
    Messages:
    3,141
    Likes Received:
    2
    Trophy Points:
    106
    667MHz is going to be faster.
    Tim
     
    Tim, Sep 6, 2006
    #2
  3. Phillip

    Phillip Phillip J. Fry

    Reputations:
    1,302
    Messages:
    1,736
    Likes Received:
    0
    Trophy Points:
    55
    In most cases fasteris better, so I would go with the 677MHz. I always try to get the fastest and or best performing hardware that I can afford.

    ucb9999
     
    Phillip, Sep 6, 2006
    #3
  4. fdlazarte

    fdlazarte Notebook Consultant

    Reputations:
    36
    Messages:
    276
    Likes Received:
    0
    Trophy Points:
    30
    how much faster? i thought it's unnoticable (milli-seconds faster?!?)
     
    fdlazarte, Sep 6, 2006
    #4
  5. Tim

    Tim Notebook Virtuoso

    Reputations:
    2,752
    Messages:
    3,141
    Likes Received:
    2
    Trophy Points:
    106
    That I don't know. :p I just have a P-M which can only take 553 MHz so I haven't really studied the difference between the two.
    Tim
     
    Tim, Sep 6, 2006
    #5
  6. Leshii

    Leshii Notebook Evangelist

    Reputations:
    31
    Messages:
    554
    Likes Received:
    0
    Trophy Points:
    30
    according to earlier posts on this forum, the difference between 667 and 533 is negligible.
     
    Leshii, Sep 6, 2006
    #6
  7. RogueMonk

    RogueMonk Notebook Deity

    Reputations:
    369
    Messages:
    1,991
    Likes Received:
    0
    Trophy Points:
    55
    Not true. The higher latency of the 667mhz RAM negates is faster bus speed. Some people even suggest that 533 RAM with a CL of 4 is faster than 667mhz with CL 5.
     
    RogueMonk, Sep 6, 2006
    #7
  8. particleman

    particleman Notebook Enthusiast

    Reputations:
    0
    Messages:
    27
    Likes Received:
    0
    Trophy Points:
    5
    DDR667 doesn't help much if you are using dedicated graphics. But with integrated graphics the performance benefit going from DDR533 to DDR667 is pretty significant. Because integrated graphics shares it memory with the main system memory and system memory is relatively slow compared to the memory found on graphics cards, integrated graphics cards need all the memory bandwidth they can get. It won't show up in CPU benchmarks, but if you test DD667 vs DDR533 in a game using integrated graphics there will be a half decent gap. Also latency for GPUs is a lot less important than bandwidth.
     
    particleman, Sep 6, 2006
    #8
  9. sheff159

    sheff159 Notebook Deity

    Reputations:
    77
    Messages:
    880
    Likes Received:
    0
    Trophy Points:
    30
    RogueMonk is right. When it comes down to it I would just try to match your processor FSB and your RAM speeds. So if your getting a core 2, its going to be 667. But in reality the difference is small.
     
    sheff159, Sep 6, 2006
    #9
  10. Thaenatos

    Thaenatos Zero Cool

    Reputations:
    1,581
    Messages:
    5,346
    Likes Received:
    126
    Trophy Points:
    231
    its a double edged sword. The 667 is faster but the higher cas negates that. 533 is slower but has a lower cas. Performance wise the 667 will be faster, but how much you ask? So little that you wont really notice. Bnenchmarks (pcmark) will tell you that the 533 is better as it does a ram latency test. But in fact the 667 is slightly, and I mean slightly, faster. Either way you slice it it will get the job done.
     
    Thaenatos, Sep 6, 2006
    #10
  11. robby21

    robby21 Notebook Enthusiast

    Reputations:
    0
    Messages:
    28
    Likes Received:
    0
    Trophy Points:
    5
    Thank you all,
    I have a better idea now :)
     
    robby21, Sep 6, 2006
    #11