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# WD
WDC WD20NMVW-11EDZS3 2000.3 GB
USB (Serial ATA)
SATA/300 | SATA/300
ACS-2 | ----
------------------------------------------------------------------------------
CrystalDiskMark 7.0.0 x64 (C) 2007-2019 hiyohiyo
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
Sequential 1MiB (Q= 8, T= 1): 105.632 MB/s [ 100.7 IOPS] < 78639.33 us>
Sequential 1MiB (Q= 1, T= 1): 105.511 MB/s [ 100.6 IOPS] < 9930.50 us>
Random 4KiB (Q= 32, T=16): 0.583 MB/s [ 142.3 IOPS] <832206.45 us>
Random 4KiB (Q= 1, T= 1): 0.529 MB/s [ 129.2 IOPS] < 7716.75 us>
[Write]
Sequential 1MiB (Q= 8, T= 1): 106.119 MB/s [ 101.2 IOPS] < 78200.35 us>
Sequential 1MiB (Q= 1, T= 1): 105.460 MB/s [ 100.6 IOPS] < 9921.52 us>
Random 4KiB (Q= 32, T=16): 1.058 MB/s [ 258.3 IOPS] <628896.94 us>
Random 4KiB (Q= 1, T= 1): 1.013 MB/s [ 247.3 IOPS] < 4034.43 us>
Profile: Default
Test: 1 GiB (x3) [Interval: 5 sec] <DefaultAffinity=DISABLED>
Date: 2020/11/18 21:04:52
OS: Windows 10 [10.0 Build 19042] (x64)
# HITACHI
HTS547550A9E384 500.1 GB
UASP (Serial ATA)
---- | SATA/300
ATA8-ACS | ATA8-ACS version 6
------------------------------------------------------------------------------
CrystalDiskMark 7.0.0 x64 (C) 2007-2019 hiyohiyo
------------------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
[Read]
Sequential 1MiB (Q= 8, T= 1): 74.731 MB/s [ 71.3 IOPS] <110516.59 us>
Sequential 1MiB (Q= 1, T= 1): 73.802 MB/s [ 70.4 IOPS] < 14199.91 us>
Random 4KiB (Q= 32, T=16): 0.606 MB/s [ 147.9 IOPS] <819110.92 us>
Random 4KiB (Q= 1, T= 1): 0.266 MB/s [ 64.9 IOPS] < 15302.12 us>
[Write]
Sequential 1MiB (Q= 8, T= 1): 30.407 MB/s [ 29.0 IOPS] <271314.83 us>
Sequential 1MiB (Q= 1, T= 1): 28.101 MB/s [ 26.8 IOPS] < 31097.10 us>
Random 4KiB (Q= 32, T=16): 0.226 MB/s [ 55.2 IOPS] <660530.87 us>
Random 4KiB (Q= 1, T= 1): 0.226 MB/s [ 55.2 IOPS] < 15997.09 us>
Profile: Default
Test: 1 GiB (x3) [Interval: 5 sec] <DefaultAffinity=DISABLED>
Date: 2020/11/18 21:14:46
OS: Windows 10 [10.0 Build 19042] (x64)