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Thread: Which SD is Best for Audio Projects?

  1. #26
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    The CANVAS Go! Plus 256GB vs 512GB Sandisk Extreme is interesting. In the range I expect to be important the CANVAS Go! seems to have a bit more read performance.

    The Lexar 128GB is appealing for maxLat but speed is not best. Often max latency is the winner for time critical apps.

    CANVAS Go! Plus 256GB
    ns: 16 nf: 4 maxLat: 1336 total KB/sec: 11365.23 file KB/sec: 2841.31
    ns: 16 nf: 8 maxLat: 1332 total KB/sec: 11384.14 file KB/sec: 1423.02
    ns: 16 nf: 16 maxLat: 1333 total KB/sec: 11393.93 file KB/sec: 712.12
    ns: 8 nf: 4 maxLat: 478 total KB/sec: 12056.34 file KB/sec: 3014.08
    ns: 8 nf: 8 maxLat: 551 total KB/sec: 12039.59 file KB/sec: 1504.95
    ns: 8 nf: 16 maxLat: 552 total KB/sec: 9964.97 file KB/sec: 622.81

    Sandisk Extreme 512GB
    ns: 16 nf: 4 maxLat: 1958 total KB/sec: 7711.56 file KB/sec: 1927.89
    ns: 16 nf: 8 maxLat: 1960 total KB/sec: 7701.31 file KB/sec: 962.66
    ns: 16 nf: 16 maxLat: 2135 total KB/sec: 6703.15 file KB/sec: 418.95
    ns: 8 nf: 4 maxLat: 894 total KB/sec: 8204.96 file KB/sec: 2051.24
    ns: 8 nf: 8 maxLat: 898 total KB/sec: 8213.02 file KB/sec: 1026.63
    ns: 8 nf: 16 maxLat: 901 total KB/sec: 8216.21 file KB/sec: 513.51

    More Cards:
    Samsung EVO Select 512GB
    ns: 16 nf: 4 maxLat: 818 total KB/sec: 10882.09 file KB/sec: 2720.52
    ns: 16 nf: 8 maxLat: 834 total KB/sec: 11150.35 file KB/sec: 1393.79
    ns: 16 nf: 16 maxLat: 833 total KB/sec: 11480.51 file KB/sec: 717.53
    ns: 8 nf: 4 maxLat: 580 total KB/sec: 7514.75 file KB/sec: 1878.69
    ns: 8 nf: 8 maxLat: 628 total KB/sec: 7748.92 file KB/sec: 968.61
    ns: 8 nf: 16 maxLat: 628 total KB/sec: 8045.69 file KB/sec: 502.86

    Samsung EVO Plus 128GB
    ns: 16 nf: 4 maxLat: 2953 total KB/sec: 7478.90 file KB/sec: 1869.73
    ns: 16 nf: 8 maxLat: 3783 total KB/sec: 7284.12 file KB/sec: 910.52
    ns: 16 nf: 16 maxLat: 3822 total KB/sec: 7095.29 file KB/sec: 443.46
    ns: 8 nf: 4 maxLat: 905 total KB/sec: 5612.42 file KB/sec: 1403.10
    ns: 8 nf: 8 maxLat: 3255 total KB/sec: 5255.54 file KB/sec: 656.94
    ns: 8 nf: 16 maxLat: 905 total KB/sec: 5106.80 file KB/sec: 319.18

    SanDisk 512GB Ultra
    ns: 16 nf: 4 maxLat: 1948 total KB/sec: 7727.69 file KB/sec: 1931.92
    ns: 16 nf: 8 maxLat: 1949 total KB/sec: 7766.63 file KB/sec: 970.83
    ns: 16 nf: 16 maxLat: 1949 total KB/sec: 7847.26 file KB/sec: 490.45
    ns: 8 nf: 4 maxLat: 1145 total KB/sec: 7748.60 file KB/sec: 1937.15
    ns: 8 nf: 8 maxLat: 1144 total KB/sec: 7848.20 file KB/sec: 981.02
    ns: 8 nf: 16 maxLat: 1145 total KB/sec: 7979.28 file KB/sec: 498.71

    Lexar 128GB 1066X
    ns: 16 nf: 4 maxLat: 743 total KB/sec: 11975.14 file KB/sec: 2993.78
    ns: 16 nf: 8 maxLat: 747 total KB/sec: 11928.73 file KB/sec: 1491.09
    ns: 16 nf: 16 maxLat: 747 total KB/sec: 11900.44 file KB/sec: 743.78
    ns: 8 nf: 4 maxLat: 519 total KB/sec: 8599.63 file KB/sec: 2149.91
    ns: 8 nf: 8 maxLat: 524 total KB/sec: 8559.72 file KB/sec: 1069.96
    ns: 8 nf: 16 maxLat: 524 total KB/sec: 8535.84 file KB/sec: 533.49
    Last edited by Bill Greiman; 10-12-2021 at 02:23 PM. Reason: Add more cards

  2. #27
    Senior Member+ mjs513's Avatar
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    Going to rerun with preallocate of <<30 instead of 29 and see what happens. Was trying to compare it to some others that needed <<29 to work. Could that be the delta?

  3. #28
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    Going to rerun with preallocate of <<30 instead of 29 and see what happens
    I used 30 to space files by 1GB. I named files so A.bin is 8 GB from B.bin and so forth. I suspect using 0.5 GB files won't make much difference.

    Notice I added more cards above. I wish manufactures would reveal their buffer algorithms. There are some strange patterns.

  4. #29
    Senior Member+ mjs513's Avatar
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    Quote Originally Posted by Bill Greiman View Post
    I used 30 to space files by 1GB. I named files so A.bin is 8 GB from B.bin and so forth. I suspect using 0.5 GB files won't make much difference.
    Ok then it is what it is.

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