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WD PC SN740 256GB SDDPNQD-256G

WD PC SN740 256GB SDDPNQD-256G SN740 SDDPNQD-256G

The Western Digital WD PC SN740 256 GB (WDSN740-SDDPNQD-256G-1004) is a mid-range M.2 2280 NVMe SSD. The SSDPNQD variant supports TCG Pyrite 2.01 security (in contrast to the SDDQNQD that supports TCG Opal SSC 2.01). The SSD is specified at 4000 MB/s read and 2000 MB/s write.

TypeSSD
SizeM.2 2280
Capacity256 GB
InterfaceNVMe
Announced02.03.2023

Benchmarks

Performance Rating - DiskSpd
33.9 pt (46%)
AS SSD - Copy Game
min: 204.06     avg: 744     median: 743.7 (12%)     max: 1283.35 MB/s
AS SSD - Copy Program
min: 349.23     avg: 482     median: 482 (18%)     max: 614.77 MB/s
AS SSD - Copy ISO
min: 1181.38     avg: 1240     median: 1240.2 (11%)     max: 1299.06 MB/s
AS SSD - Score Total
min: 1534     avg: 2619     median: 2619 (24%)     max: 3704 Points
AS SSD - Score Write
min: 341     avg: 1091     median: 1091 (19%)     max: 1841 Points
AS SSD - Score Read
min: 832     avg: 1048     median: 1047.5 (26%)     max: 1263 Points
AS SSD - Access Time Write *
min: 0.019     avg: 0     median: 0 (0%)     max: 0.036 ms
AS SSD - Access Time Read *
min: 0.103     avg: 0.2     median: 0.2 (1%)     max: 0.244 ms
AS SSD - 4K-64 Write
min: 93.05     avg: 778     median: 778.3 (15%)     max: 1463.63 MB/s
AS SSD - 4K-64 Read
min: 531.82     avg: 711     median: 710.8 (21%)     max: 889.77 MB/s
AS SSD - 4K Write
min: 96.41     avg: 155.9     median: 155.9 (43%)     max: 215.44 MB/s
AS SSD - 4K Read
min: 19.2     avg: 46.7     median: 46.7 (15%)     max: 74.26 MB/s
AS SSD - Sequential Write
min: 1512.15     avg: 1565     median: 1564.9 (18%)     max: 1617.55 MB/s
AS SSD - Sequential Read
min: 2811.91     avg: 2899     median: 2899.4 (29%)     max: 2986.81 MB/s
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K
243.9 MB/s (22%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K
83 MB/s (2%)
CrystalDiskMark 5.2 / 6 - CDM 5 Write Seq
1707 MB/s (9%)
CrystalDiskMark 5.2 / 6 - CDM 5 Read Seq
2914 MB/s (35%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write 4K Q32T1
808 MB/s (30%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read 4K Q32T1
832 MB/s (13%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Write Seq Q32T1
1788 MB/s (17%)
CrystalDiskMark 5.2 / 6 - CDM 5/6 Read Seq Q32T1
4023 MB/s (31%)
DiskSpd - DiskSpd 4k_q1t1_write
min: 221     avg: 233.5     median: 233.5 (55%)     max: 246 MB/s
DiskSpd - DiskSpd 4k_q1t1_read
min: 74.3     avg: 76.2     median: 76.2 (22%)     max: 78.1 MB/s
DiskSpd - DiskSpd 4k_q32t16_write
min: 1392     avg: 1612     median: 1612 (33%)     max: 1832 MB/s
DiskSpd - DiskSpd 4k_q32t16_read
min: 1000     avg: 1002     median: 1002 (17%)     max: 1004 MB/s
DiskSpd - DiskSpd seq_write
min: 1633     avg: 1676     median: 1675.5 (21%)     max: 1718 MB/s
DiskSpd - DiskSpd seq_read
min: 1639     avg: 2329     median: 2329 (41%)     max: 3019 MB/s
DiskSpd - DiskSpd seq_q8t1_write
min: 1821     avg: 1853     median: 1852.5 (18%)     max: 1884 MB/s
DiskSpd - DiskSpd Loop seq_q8t1_read
min: 3951     avg: 3997     median: 3997 (30%)     max: 4043 MB/s
01002003004005006007008009001000110012001300140015001600170018001900200021002200230024002500260027002800290030003100320033003400350036003700380039004000Tooltip
- 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
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#2 did not recreate cache, as it is less than 5 days old! Created at Tue, 30 May 2023 20:13:09 +0200 +0.001s ... 0.001s

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#5 getting avg benchmarks for device 3969 +0.014s ... 0.021s

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#8 min, max, avg, median took s +0.908s ... 0.938s

#9 return log +0.018s ... 0.956s

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Laptop harddisks (HDD, SSD) benchmarks > WD PC SN740 256GB SDDPNQD-256G SSD Benchmarks
Klaus Hinum (Update: 2023-03-23)