TEST: Western Digital WD Blue SN580 500GB M.2 SSD

Technical data
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Manufacturer	Western Digital
Model number	WDS500G3B0E
Storage capacity	500 GB (466 GiB)
pSLC-Cache	176 GB approx.
Read speed	4000 MB/s
Write speed	3600 MB/s
Interface	PCIe 4.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	no
TBW (Total Bytes Written)	300 Terabyte
Controller	Sandisk A101
Price	ca. 50 AUD (= 0,10 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

54 %

Write speed

62 %

*) 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 4258 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	3542,60 MB/s	3245,32 MB/s
4K in megabytes per second	69,81 MB/s	195,06 MB/s
4K-64Thrd in megabytes per second	862,91 MB/s	1787,76 MB/s
Access time in milliseconds	0,023 ms	0,115 ms
Score	1287	2307
Total score	4258

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 August 09, 2024 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	2117,39 MB/s	1,09 s
Program many small files	1154,92 MB/s	6,09 s
Game small and large files	1875,97 MB/s	3,68 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 4000MB/s and 3600MB/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	4042,67	3555,11
SEQ1M Q1T1	3203,24	3589,63
RND4K Q32T16	1253,91	2481,47
RND4K Q1T1	59,72	217,57