私が持っているUSBメモリをCrystalDiskMarkにて計測してみました。
- USBメモリ
- シリコンパワー USBメモリ 128GB USB3.2 Gen1 (USB3.1 / 3.0 / 2.0 互換) 小型 防水 防塵 耐衝撃 Mac対応 J09 SP128GBUF3J09V1K
- エレコム USBメモリ 32GB USB3.2(Gen1)対応グレー MF-LPU3032GGY
- SanDisk Ultra Fit SDCZ430-032G-J57 USBメモリ 32GB USB 3.1
- BAFFALO RUF3-K16GB-BL (16GB USB 3.2(Gen 1)
- Transcend 16GB JetFlash 790 USB 3.0 Flash Drive (TS16GJF790K)
- TOSHIBA UNB-3B064GW TransMemory USB3.0メモリ 64GB
- USB外付け ポータブルSSD
- (参考）KINGSTON OM8PCP3512F-AI1(GF65Thin内蔵SSD)
USBメモリ
シリコンパワー USBメモリ 128GB USB3.2 Gen1 (USB3.1 / 3.0 / 2.0 互換) 小型 防水 防塵 耐衝撃 Mac対応 J09 SP128GBUF3J09V1K
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CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
SEQ 1MiB (Q= 8, T= 1): 184.508 MB/s [ 176.0 IOPS] < 45213.35 us>
SEQ 1MiB (Q= 1, T= 1): 184.649 MB/s [ 176.1 IOPS] < 5672.79 us>
RND 4KiB (Q= 32, T= 1): 13.046 MB/s [ 3185.1 IOPS] < 10030.30 us>
RND 4KiB (Q= 1, T= 1): 9.056 MB/s [ 2210.9 IOPS] < 451.74 us>
[Write]
SEQ 1MiB (Q= 8, T= 1): 170.136 MB/s [ 162.3 IOPS] < 48906.99 us>
SEQ 1MiB (Q= 1, T= 1): 168.953 MB/s [ 161.1 IOPS] < 6195.62 us>
RND 4KiB (Q= 32, T= 1): 3.169 MB/s [ 773.7 IOPS] < 41105.83 us>
RND 4KiB (Q= 1, T= 1): 2.725 MB/s [ 665.3 IOPS] < 1501.28 us>
Profile: Default
Test: 1 GiB (x5) [E: 0% (0/118GiB)]
Mode: [Admin]
Time: Measure 5 sec / Interval 5 sec
Date: 2023/01/16 15:02:27
OS: Windows 11 Professional [10.0 Build 22621] (x64)
エレコム USBメモリ 32GB USB3.2(Gen1)対応グレー MF-LPU3032GGY
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CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
SEQ 1MiB (Q= 8, T= 1): 206.555 MB/s [ 197.0 IOPS] < 40379.12 us>
SEQ 1MiB (Q= 1, T= 1): 193.660 MB/s [ 184.7 IOPS] < 5408.84 us>
RND 4KiB (Q= 32, T= 1): 12.664 MB/s [ 3091.8 IOPS] < 10331.04 us>
RND 4KiB (Q= 1, T= 1): 11.962 MB/s [ 2920.4 IOPS] < 342.05 us>
[Write]
SEQ 1MiB (Q= 8, T= 1): 89.915 MB/s [ 85.7 IOPS] < 89462.82 us>
SEQ 1MiB (Q= 1, T= 1): 84.946 MB/s [ 81.0 IOPS] < 12325.44 us>
RND 4KiB (Q= 32, T= 1): 0.007 MB/s [ 1.7 IOPS] <1732050.59 us>
RND 4KiB (Q= 1, T= 1): 0.007 MB/s [ 1.7 IOPS] <510604.16 us>
Profile: Default
Test: 1 GiB (x5) [G: 55% (8/14GiB)]
Mode: [Admin]
Time: Measure 5 sec / Interval 5 sec
Date: 2023/01/15 15:31:58
OS: Windows 11 Professional [10.0 Build 22621] (x64)
SanDisk Ultra Fit SDCZ430-032G-J57 USBメモリ 32GB USB 3.1
------------------------------------------------------------------------------
CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
SEQ 1MiB (Q= 8, T= 1): 136.316 MB/s [ 130.0 IOPS] < 61032.13 us>
SEQ 1MiB (Q= 1, T= 1): 135.734 MB/s [ 129.4 IOPS] < 7714.20 us>
RND 4KiB (Q= 32, T= 1): 7.945 MB/s [ 1939.7 IOPS] < 16440.68 us>
RND 4KiB (Q= 1, T= 1): 7.658 MB/s [ 1869.6 IOPS] < 534.06 us>
[Write]
SEQ 1MiB (Q= 8, T= 1): 24.940 MB/s [ 23.8 IOPS] <319972.96 us>
SEQ 1MiB (Q= 1, T= 1): 24.308 MB/s [ 23.2 IOPS] < 42019.89 us>
RND 4KiB (Q= 32, T= 1): 1.363 MB/s [ 332.8 IOPS] < 95037.72 us>
RND 4KiB (Q= 1, T= 1): 1.343 MB/s [ 327.9 IOPS] < 3045.30 us>
Profile: Default
Test: 1 GiB (x5) [G: 55% (8/14GiB)]
Mode: [Admin]
Time: Measure 5 sec / Interval 5 sec
Date: 2023/01/15 15:20:21
OS: Windows 11 Professional [10.0 Build 22621] (x64)
BAFFALO RUF3-K16GB-BL (16GB USB 3.2(Gen 1)
------------------------------------------------------------------------------
CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
SEQ 1MiB (Q= 8, T= 1): 106.020 MB/s [ 101.1 IOPS] < 78384.87 us>
SEQ 1MiB (Q= 1, T= 1): 105.807 MB/s [ 100.9 IOPS] < 9891.31 us>
RND 4KiB (Q= 32, T= 1): 9.455 MB/s [ 2308.3 IOPS] < 13833.83 us>
RND 4KiB (Q= 1, T= 1): 8.463 MB/s [ 2066.2 IOPS] < 483.22 us>
[Write]
SEQ 1MiB (Q= 8, T= 1): 20.089 MB/s [ 19.2 IOPS] <371106.20 us>
SEQ 1MiB (Q= 1, T= 1): 23.067 MB/s [ 22.0 IOPS] < 45415.38 us>
RND 4KiB (Q= 32, T= 1): 0.007 MB/s [ 1.7 IOPS] <2215752.28 us>
RND 4KiB (Q= 1, T= 1): 0.006 MB/s [ 1.5 IOPS] <619732.55 us>
Profile: Default
Test: 1 GiB (x5) [E: 80% (24/30GiB)]
Mode: [Admin]
Time: Measure 5 sec / Interval 5 sec
Date: 2023/01/19 22:20:26
OS: Windows 11 Professional [10.0 Build 22621] (x64)
Transcend 16GB JetFlash 790 USB 3.0 Flash Drive (TS16GJF790K)
------------------------------------------------------------------------------
CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
SEQ 1MiB (Q= 8, T= 1): 144.048 MB/s [ 137.4 IOPS] < 57823.87 us>
SEQ 1MiB (Q= 1, T= 1): 140.963 MB/s [ 134.4 IOPS] < 7425.21 us>
RND 4KiB (Q= 32, T= 1): 7.734 MB/s [ 1888.2 IOPS] < 16904.57 us>
RND 4KiB (Q= 1, T= 1): 6.939 MB/s [ 1694.1 IOPS] < 588.46 us>
[Write]
SEQ 1MiB (Q= 8, T= 1): 62.405 MB/s [ 59.5 IOPS] <132159.63 us>
SEQ 1MiB (Q= 1, T= 1): 63.593 MB/s [ 60.6 IOPS] < 16465.14 us>
RND 4KiB (Q= 32, T= 1): 1.167 MB/s [ 284.9 IOPS] <109412.43 us>
RND 4KiB (Q= 1, T= 1): 1.085 MB/s [ 264.9 IOPS] < 3772.23 us>
Profile: Default
Test: 1 GiB (x5) [G: 55% (8/14GiB)]
Mode: [Admin]
Time: Measure 5 sec / Interval 5 sec
Date: 2023/01/15 15:02:23
OS: Windows 11 Professional [10.0 Build 22621] (x64)
TOSHIBA UNB-3B064GW TransMemory USB3.0メモリ 64GB
------------------------------------------------------------------------------
CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
SEQ 1MiB (Q= 8, T= 1): 136.443 MB/s [ 130.1 IOPS] < 60994.62 us>
SEQ 1MiB (Q= 1, T= 1): 136.328 MB/s [ 130.0 IOPS] < 7687.07 us>
RND 4KiB (Q= 32, T= 1): 11.956 MB/s [ 2918.9 IOPS] < 10945.13 us>
RND 4KiB (Q= 1, T= 1): 11.301 MB/s [ 2759.0 IOPS] < 361.91 us>
[Write]
SEQ 1MiB (Q= 8, T= 1): 11.516 MB/s [ 11.0 IOPS] <654875.43 us>
SEQ 1MiB (Q= 1, T= 1): 12.792 MB/s [ 12.2 IOPS] < 53507.85 us>
RND 4KiB (Q= 32, T= 1): 0.003 MB/s [ 0.7 IOPS] <1939379.73 us>
RND 4KiB (Q= 1, T= 1): 0.004 MB/s [ 1.0 IOPS] <378519.49 us>
Profile: Default
Test: 1 GiB (x5) [T: 14% (8/58GiB)]
Mode: [Admin]
Time: Measure 5 sec / Interval 5 sec
Date: 2023/01/15 11:04:45
OS: Windows 11 Professional [10.0 Build 22621] (x64)
USB外付け ポータブルSSD
エレコム SSD 外付け 250GB USB3.2 Gen1 タイプC&タイプAケーブル付属
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CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
SEQ 1MiB (Q= 8, T= 1): 461.837 MB/s [ 440.4 IOPS] < 18115.11 us>
SEQ 1MiB (Q= 1, T= 1): 437.108 MB/s [ 416.9 IOPS] < 2397.33 us>
RND 4KiB (Q= 32, T= 1): 123.425 MB/s [ 30133.1 IOPS] < 1059.29 us>
RND 4KiB (Q= 1, T= 1): 21.240 MB/s [ 5185.5 IOPS] < 192.45 us>
[Write]
SEQ 1MiB (Q= 8, T= 1): 417.441 MB/s [ 398.1 IOPS] < 20006.81 us>
SEQ 1MiB (Q= 1, T= 1): 395.200 MB/s [ 376.9 IOPS] < 2651.31 us>
RND 4KiB (Q= 32, T= 1): 127.368 MB/s [ 31095.7 IOPS] < 1027.91 us>
RND 4KiB (Q= 1, T= 1): 39.231 MB/s [ 9577.9 IOPS] < 104.10 us>
Profile: Default
Test: 1 GiB (x5) [F: 0% (0/233GiB)]
Mode: [Admin]
Time: Measure 5 sec / Interval 5 sec
Date: 2023/01/21 15:33:07
OS: Windows 11 Professional [10.0 Build 22621] (x64)
BUFFALO USB3．2(Gen1) 超小型ポータブルSSD(120GB) モスブルー SSD-PSM120U3-MB
------------------------------------------------------------------------------
CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
SEQ 1MiB (Q= 8, T= 1): 447.044 MB/s [ 426.3 IOPS] < 18715.60 us>
SEQ 1MiB (Q= 1, T= 1): 425.488 MB/s [ 405.8 IOPS] < 2462.25 us>
RND 4KiB (Q= 32, T= 1): 116.776 MB/s [ 28509.8 IOPS] < 1120.95 us>
RND 4KiB (Q= 1, T= 1): 19.113 MB/s [ 4666.3 IOPS] < 213.95 us>
[Write]
SEQ 1MiB (Q= 8, T= 1): 412.406 MB/s [ 393.3 IOPS] < 20234.75 us>
SEQ 1MiB (Q= 1, T= 1): 383.267 MB/s [ 365.5 IOPS] < 2733.12 us>
RND 4KiB (Q= 32, T= 1): 130.481 MB/s [ 31855.7 IOPS] < 998.88 us>
RND 4KiB (Q= 1, T= 1): 39.020 MB/s [ 9526.4 IOPS] < 104.66 us>
Profile: Default
Test: 1 GiB (x5) [E: 49% (54/112GiB)]
Mode: [Admin]
Time: Measure 5 sec / Interval 5 sec
Date: 2023/01/16 15:24:57
OS: Windows 11 Professional [10.0 Build 22621] (x64)
KINGSTON OM8PCP3512F-AI1 + 玄人志向 GW2.5-KRU3(USB 3.2 Gen1 外付けケース)
------------------------------------------------------------------------------
CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
SEQ 1MiB (Q= 8, T= 1): 455.015 MB/s [ 433.9 IOPS] < 18388.60 us>
SEQ 1MiB (Q= 1, T= 1): 433.632 MB/s [ 413.5 IOPS] < 2417.16 us>
RND 4KiB (Q= 32, T= 1): 136.179 MB/s [ 33246.8 IOPS] < 954.83 us>
RND 4KiB (Q= 1, T= 1): 22.942 MB/s [ 5601.1 IOPS] < 177.96 us>
[Write]
SEQ 1MiB (Q= 8, T= 1): 395.203 MB/s [ 376.9 IOPS] < 21127.65 us>
SEQ 1MiB (Q= 1, T= 1): 371.746 MB/s [ 354.5 IOPS] < 2814.66 us>
RND 4KiB (Q= 32, T= 1): 117.241 MB/s [ 28623.3 IOPS] < 1116.55 us>
RND 4KiB (Q= 1, T= 1): 37.516 MB/s [ 9159.2 IOPS] < 108.72 us>
Profile: Default
Test: 1 GiB (x5) [F: 30% (33/111GiB)]
Mode: [Admin]
Time: Measure 5 sec / Interval 5 sec
Date: 2023/01/19 19:15:09
OS: Windows 11 Professional [10.0 Build 22621] (x64)
ドライブスペック的にはR=1308MB/sec W=653MB/Sec出るため、USB I/Fがかなり足を引っ張っているようです。
PassMark - KINGSTON OM8PCP3512F-AI1 - Price performance comparison
www.harddrivebenchmark.net
(参考）KINGSTON OM8PCP3512F-AI1(GF65Thin内蔵SSD)
Windows11が稼働中のシステムドライブでいくつかプログラムが動いている状態での計測なので、実際はもっと早いものと思われます。
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CrystalDiskMark 8.0.4 x64 (C) 2007-2021 hiyohiyo
Crystal Dew World: https://crystalmark.info/
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
SEQ 1MiB (Q= 8, T= 1): 1227.867 MB/s [ 1171.0 IOPS] < 6804.22 us>
SEQ 1MiB (Q= 1, T= 1): 1228.652 MB/s [ 1171.7 IOPS] < 852.71 us>
RND 4KiB (Q= 32, T= 1): 302.057 MB/s [ 73744.4 IOPS] < 432.21 us>
RND 4KiB (Q= 1, T= 1): 34.871 MB/s [ 8513.4 IOPS] < 117.07 us>
[Write]
SEQ 1MiB (Q= 8, T= 1): 232.702 MB/s [ 221.9 IOPS] < 35626.00 us>
SEQ 1MiB (Q= 1, T= 1): 104.985 MB/s [ 100.1 IOPS] < 9965.88 us>
RND 4KiB (Q= 32, T= 1): 245.694 MB/s [ 59983.9 IOPS] < 530.90 us>
RND 4KiB (Q= 1, T= 1): 78.592 MB/s [ 19187.5 IOPS] < 51.79 us>
Profile: Default
Test: 1 GiB (x5) [C: 93% (444/476GiB)]
Mode: [Admin]
Time: Measure 5 sec / Interval 5 sec
Date: 2023/01/16 15:12:49
OS: Windows 11 Professional [10.0 Build 22621] (x64)
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