TEST: Western Digital WD Blue SN570 500GB M.2 SSD

Technical data
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Manufacturer	Western Digital
Model number	WDS500G3B0C
Storage capacity	500 GB (466 GiB)
pSLC-Cache	6 GB approx.
Read speed	3500 MB/s
Write speed	2300 MB/s
Interface	PCIe 3.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	no
TBW (Total Bytes Written)	300 Terabyte
Controller	WD 20-82-10048-A1
Price	ca. 59 AUD (= 0,12 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

94 %

Write speed

76 %

*) Test result evaluated according to AS SSD Score within the same size.

AS SSD Benchmark

Standard performance test

The standard test was performed with a 5 GB file. A total score of 2000 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	3156,30 MB/s	2416,67 MB/s
4K in megabytes per second	47,13 MB/s	79,52 MB/s
4K-64Thrd in megabytes per second	698,23 MB/s	101,08 MB/s
Access time in milliseconds	0,028 ms	0,224 ms
Score	1061	422
Total score	2000

Copy Performance Test

A common everyday situation is simulated here. Three test folders are created:

• ISO (folder with two large files)
• Program (folder with many small files)
• Game (folder with small and large files)

The three folders are copied using the Windows Copy command (the cache remains enabled). The practical test of November 22, 2021 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD Copy-Benchmark	Transfer rate:	Duration:
ISO two large files	1726,94 MB/s	1,33 s
Program many small files	860,12 MB/s	8,18 s
Game small and large files	640,37 MB/s	10,79 s

Compression Performance Test

Here, the writing and reading speed of the the Western Digital SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 3500MB/s and 2300MB/s respectively).

CrystalDiskMark Benchmark

Here, two sequential and two random performance tests are performed, similar to the ones performed on the AS SSD.

CDM	Read [MB/s]	Write [MB/s]
SEQ1M Q8T1	3597,06	2522,47
SEQ1M Q1T1	2434,64	2483,51
RND4K Q32T16	1123,50	571,80
RND4K Q1T1	49,64	154,96