Surface RT and Surface Pro sdxc slot

Discussion in 'Microsoft Surface General Discussion' started by joga, Feb 10, 2013.

  1. joga

    joga Member

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    Hi,

    how fast can Surface RT and Surface Pro read / write to an SDXC 10 class card?

    I want to buy a SDXC card (for my Surface RT and for my hopefully soon owning Surface Pro) but i'm not sure if i will limit myself with buying a to slow SDXC card.

    Right now i'm considering the following card.

    SanDisk SDSDXPA-064G-X46 Extreme Pro SDXC 64GB

    http://www.amazon.de/SanDisk-SDSDXP...=UTF8&colid=4L1MFGUALR8Y&coliid=IG7A3YLOPZUBQ

    The card is expensive without knowing if i will have an Advantage by using such a fast card.


    Which card do you have for your Surface RT and Surface Pro?

    joga




    Sent from my Windows 8 device using Board Express Pro
  2. ArnoldC

    ArnoldC New Member

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    My experience on my RT is around 20MB/sec. That is from the SDXC to local storage. This is SanDisk.

    [​IMG]
    Last edited: Feb 10, 2013
  3. bosamar

    bosamar New Member

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    My Device:
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    I'm running a PNY 32GB Hi-Speed MicroSDHC Class 10 for Tablet PCs. No idea what speed it runs at. I paid $17 at Staples for it.
  4. compnovo

    compnovo Member

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    My Device:
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    I'm using a SanDisk 64GB Ultra that cost me about $60US. I haven't measured the speed but I can tell you I don't get any lags with music or videos, and documents open up promptly (although they would open faster if stored locally).
  5. joga

    joga Member

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    thx so far for the replies.

    Can someone with a surface pro share his experience with us?

    joga
  6. Russ

    Russ Active Member

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    Joga --

    Wow, it's been a long, long time since I did a Time & Motion Study, but I do still have my mechanical stopwatch. I didn't use it for this, though; I used a desktop stopwatch. It's raining this morning, so can't take the dogs out back -- well, I could. They would go, but I won't. So, time for a little experiment.

    I didn't have a really big file on the Pro, but did have a 1.2G video file, so I made three copies of it, put them in a folder and moved it back and forth.

    Surface Pro 128GB
    C = Surface Pro SSD
    D = SanDisk 64GB Mobile Ultra MicroSDXC Class 10 Memory Card
    Folder contained 3 copies of a 1,259,303KB file, or 3,777,909KB
    Transfer Speed was observed from the Details section of the file transfer block. The speed fluctuates during the transfer. "Range" is inexact.
    Elapsed time was measured by the desktop stopwatch.

    I transferred the folder from D to C; then transferred it back from C to D into an empty folder.

    Observed results (non-scientific):

    D to C = Range 38-39, Typical 38.7 -- Time 1:33
    C to D = Range 11.0 to 14.8, Typical 12 to 13 -- Time 4:48

    You can do the math.

    That acrid smell is from some olde SIMMs & DIMMs (with a little bit of core memory for nostalgia's sake) being activated after a long period of idleness.

    Hope this tells you what you want to know. It's still raining, so I'll be here if you want something else.

    Take care,
    Russ
    Last edited: Feb 11, 2013
  7. DarthBurrito

    DarthBurrito Active Member

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    I say always go with the best, but of course at a reasonable price.
  8. joga

    joga Member

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    great, thx for the effort and all the infos.

    I think i will take a cheaper sdxc card and just store my user data on it.

    Maybe i should also go with the Surface Pro 128 GB when it's released in Germany.
  9. HoHo

    HoHo New Member

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    Russ,

    Do you have a slower card that you could test? Just wondering if there is a difference.
    Thanks,

    Henry

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