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    TXN15 after memory upgrade: Faster or slower?

    Discussion in 'VAIO / Sony' started by ZodiacPhoto, Feb 25, 2007.

  1. ZodiacPhoto

    ZodiacPhoto Newbie

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    Hello everybody,
    I’m new to the forum, so please excuse me if this question was answered before. Recently I bought a VAIO VGN-TXN15, and can’t decide about efficiency of the memory upgrade.
    The TXN15 has 1GB in two 512MB sticks; one soldered to the board, and one replaceable, up to 1.5 GB total.
    However, when there are two equal 512MB sticks, the Intel chipset works in dual-channel RAM mode, effectively doubling the memory bandwidth. If I replace the accessible stick with 1GB, the memory controller will work as a single channel.
    So, my question is: does memory upgrade to 1.5 GB make sense? Does it make the notebook faster or slower? If anybody has a personal experience with the upgrade, or has a spare 1GB to test, it would be very interesting to learn the results.
    Sorry for the long post and thanks!

    ZodiacPhoto
    http://www.zodiacphoto.com
     
    ZodiacPhoto, Feb 25, 2007
    #1
  2. Fotogrfr

    Fotogrfr Notebook Guru

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    That's a really good question and I hope someone has the answer. I have the TX850 so would be facing the same concerns as you are should I decide to upgrade to 1.5G.
     
    Fotogrfr, Feb 26, 2007
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  3. Unknown27

    Unknown27 Notebook Consultant

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    I think it's a must for extra Ram when upgrading to Vista...otherwise...I'm sure the difference is negligible.
     
    Unknown27, Feb 26, 2007
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  4. denikin

    denikin Notebook Consultant

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    The performance boost by dual channel is not that big. Extra memory is always better.
     
    denikin, Feb 26, 2007
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  5. Mr. Thompson

    Mr. Thompson Notebook Enthusiast

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    My TX seems peppier with 1.5 gigs.
     
    Mr. Thompson, Mar 2, 2007
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  6. dsjr2006

    dsjr2006 Notebook Enthusiast

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    A little quicker, but you will mostly notice the difference when multitasking.
     
    dsjr2006, Jun 7, 2007
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  7. human668

    human668 Notebook Consultant

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    I read some articals say that dual channel doesn't work on TX.

    On XP, I don't know if it will load more stuffs into the extra ram first to reduce loading from hard drive.

    On Vista, the extra ram really helps.
     
    human668, Jun 8, 2007
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  8. kkelloww

    kkelloww Newbie

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    kkelloww, Jun 8, 2007
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  9. brewt

    brewt Notebook Guru

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    The 945GMS chipset that the TX has does not support dual channel (imho, not that it would make that big of a difference).
     
    brewt, Jun 8, 2007
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  10. exetlaios

    exetlaios Notebook Evangelist

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    When TZ will arrive to US, your TXN25 will have a little accident again? :D
     
    exetlaios, Jun 8, 2007
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  11. Unknown27

    Unknown27 Notebook Consultant

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    Ha ha...you better believe it....Although I'll probably be paying an extra $1000 since the TZ's cost a lot more...or I'll just wait till the next 6 month refresh with a bigger SSD...we'll see how much I can hold out. :tongue:
     
    Unknown27, Jun 8, 2007
    #11