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    T7200, 533 rams or 667 rams better? plz vote

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by triggerer, Apr 7, 2007.

  1. triggerer

    triggerer Notebook Enthusiast

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    Just a simple qn... this or the other
     
    triggerer, Apr 7, 2007
    #1
  2. villageman

    villageman Notebook Evangelist

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    No difference at all speedwise. RAM on laptops runs always with a divider and as you might know when a divider kicks in you might as well say goodbye to any expected performance gains.
    So the answer would be.

    The cheapest one
     
    villageman, Apr 7, 2007
    #2
  3. teamkillahilla

    teamkillahilla Notebook Evangelist

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    villageman, could you explain the devider thing in more detail? :)
     
    teamkillahilla, Apr 7, 2007
    #3
  4. Keizafk

    Keizafk Notebook Geek

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    Yeah.

    The cheapest one.

    If the price makes no difference to you, then the 667. For fluff reasons.
     
    Keizafk, Apr 7, 2007
    #4
  5. Necss

    Necss Notebook Consultant

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    I Like 533
     
    Necss, Apr 7, 2007
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  6. villageman

    villageman Notebook Evangelist

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    Run CPUZ and have a look at the memory tab. There you will see an FSB/DRAM ratio. Memory running "synchronous" would have a ratio of 1:1 and would give the best performance (keeping everything else the same).
    If it is running "asynchronous" then you will see other ratios ie 5:8, 1:2 etc and the memory is running bellow specs.
     
    villageman, Apr 7, 2007
    #6
  7. wave

    wave Notebook Virtuoso

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    Then why is 667mhz not faster? C2D runs a fsb of 667mhz. That would make it 1:1.
    667mhz is 2-3% faster in benchmarks. Atleast in ram benchmarks. It is not worth paying for since you wont notice a differance but it is faster.
    A C2D with 667mhz FSB has a maximum through put of 5.3Gb/s. DDR2 533 has 8.5GB/s and DDR2 667 10.6GB/s so the FSB cant make use of the extra bandwidth. That is why DDR2 667mhz is only miniable faster.
    DDR2 667mhz can be noticable faster when using onboard graphics. Since then the graphic chip takes away some of the bandwidth.
     
    wave, Apr 7, 2007
    #7
  8. triggerer

    triggerer Notebook Enthusiast

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    ^ becuz a cpu is quaded pumped and rams are dual pump
     
    triggerer, Apr 7, 2007
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  9. villageman

    villageman Notebook Evangelist

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    It would be 1:2 ;)
     
    villageman, Apr 7, 2007
    #9
  10. Charles P. Jefferies

    Charles P. Jefferies Lead Moderator Super Moderator

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    There is essentially no performance difference between 533MHz and 667MHz RAM; the latter runs at a higher frequency but is penalized by higher latencies.

    Check www.newegg.com for cheap RAM. They have a 2GB kit of DDR2-667 for about $115 last time I looked.
     
    Charles P. Jefferies, Apr 7, 2007
    #10
  11. usapatriot

    usapatriot Notebook Nobel Laureate

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    667 for maximum system performance.
     
    usapatriot, Apr 7, 2007
    #11
  12. RogueMonk

    RogueMonk Notebook Deity

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    I did not vote. There is no difference.
     
    RogueMonk, Apr 7, 2007
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  13. Necss

    Necss Notebook Consultant

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    i WOULD SAY WHICH EVER IS CHEAPER
     
    Necss, Apr 7, 2007
    #13
  14. Gator

    Gator Go Gators!

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    The 667 actually shows a slight advantage in big number crunching programs, while "serious" gamers actually prefer the 533 with much lower latencies.
     
    Gator, Apr 8, 2007
    #14
  15. fabarati

    fabarati Frorum Obfuscator

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    Go for the cheapest one. That said i went for 667 ram, since i already had on stuck in my computer.
     
    fabarati, Apr 8, 2007
    #15
  16. SideSwipe

    SideSwipe Notebook Virtuoso

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    latency and memory timings also wud play a factor here too. lower quality RAM may not have the tighter timings more expensive ones might
     
    SideSwipe, Apr 8, 2007
    #16
  17. fabarati

    fabarati Frorum Obfuscator

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    Most Ram today have the same timings for the same frequencies, i.e 533 MHz are CL4 and 667 MHz are CL5. I have seen posts that talks about 667 MHz CL4 ram, but they are not available in swedish stores (that i can see). In fact most 1 GB so-dimm ram her are value. Non-value Ram overclocks (much) better, which is why they are recommended in desktops. Notebooks don't overclock, so there's really no use for more expensive ram when it performs as well as value ones.
     
    fabarati, Apr 8, 2007
    #17
  18. Mark

    Mark Desktop Debugger

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    Couldn't have said it better myself. I did not vote either as they should be nearly identical.
     
    Mark, Apr 8, 2007
    #18
  19. Tim

    Tim Notebook Virtuoso

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    I have a question related to this...

    So when Santa comes out and 800Mhz ram is released will there be any benefit? Or will 533Mhz and 667Mhz be okay?
    Tim
     
    Tim, Apr 8, 2007
    #19
  20. fabarati

    fabarati Frorum Obfuscator

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    It will be a performance increase. If 667 MHz CL5 = 533 CL4, then even 800 MHz CL5 give better performance.
     
    fabarati, Apr 8, 2007
    #20