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WDC PC SN520 SDAPMUW-256G

WDC PC SN520 SDAPMUW-256G SN520 SDAPMUW-256G

The Western Digital PC SN520 NVMe SSD 256GB (M.2 2242, SDAPMUW-256G) is a small mid range SSD. It is specified at 1700 / 1300 MB/s sequential read / write and 220k / 175k IOPS 4k. The SSD uses 3D-NAND TLC from Toshiba/WD and is rated at a TBW of 200TB / MTBF of 1.75 Mio h.

TypeSSD
SizeM.2 2242
Capacity256 GB
InterfaceNVMe

Benchmarks

Performance Rating - DiskSpd
19.8 pt (27%)
64 GB eMMC Flash -88%
...
Toshiba KBG40ZNS256G NVMe -3%
SK hynix BC501 HFM512GDHTNG-8310A -2%
Kingston OM8PCP3512F-AB -1%
WDC PC SN520 SDAPMUW-256G
Toshiba KBG30ZMT512G 1%
WDC PC SN520 SDAPNUW-512G 1%
WDC PC SN520 SDAPMUW-512 2%
Samsung PM991 MZALQ256HAJD 3%
Samsung SSD 950 Pro 512GB m.2 NVMe 4%
...
0%
100%
AS SSD - Copy Game
546 MB/s (9%)
AS SSD - Copy Program
253.1 MB/s (9%)
AS SSD - Copy ISO
754 MB/s (7%)
AS SSD - Score Total
1647 Points (18%)
AS SSD - Score Write
659 Points (15%)
AS SSD - Score Read
657 Points (18%)
AS SSD - Access Time Write *
0 ms (0%)
AS SSD - Access Time Read *
0.1 ms (0%)
AS SSD - 4K-64 Write
399.6 MB/s (10%)
AS SSD - 4K-64 Read
467.7 MB/s (16%)
AS SSD - 4K Write
138.3 MB/s (1%)
AS SSD - 4K Read
35.9 MB/s (11%)
AS SSD - Sequential Write
1215 MB/s (14%)
AS SSD - Sequential Read
1535 MB/s (15%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
49.3 MB/s (1%)
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
1188 MB/s (6%)
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
1278 MB/s (15%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
457.4 MB/s (17%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
505 MB/s (8%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
1258 MB/s (12%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
1742 MB/s (14%)
DiskSpd - DiskSpd 4k_q1t1_read
41.8 MB/s (12%)
DiskSpd - DiskSpd seq_write
1046 MB/s (13%)
DiskSpd - DiskSpd seq_read
1107 MB/s (20%)
DiskSpd - DiskSpd seq_q8t1_write
888 MB/s (9%)
DiskSpd - DiskSpd seq_q8t1_read
1727 MB/s (13%)
DiskSpd - DiskSpd Loop seq_q8t1_read
1723 MB/s (13%)
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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v1.22
log 07. 01:22:40

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#2 did not recreate cache, as it is less than 5 days old! Created at Tue, 06 Dec 2022 17:43:25 +0100 +0.001s ... 0.001s

#3 composed specs +0.005s ... 0.006s

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#5 getting avg benchmarks for device 3524 +0.011s ... 0.017s

#6 got single benchmarks 3524 +0.004s ... 0.022s

#7 got avg benchmarks for devices +0s ... 0.022s

#8 min, max, avg, median took s +0.624s ... 0.645s

#9 return log +0.01s ... 0.656s

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Laptop harddisks (HDD, SSD) benchmarks > WDC PC SN520 SDAPMUW-256G SSD Benchmarks
Klaus Hinum (Update: 2020-07-24)