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 USD (= 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 using 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

This measures the write and read 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

HD Tune Pro Endurance test

This is a long term test to make full use of the memory capacity. You can see when a cache is full and the writing performance decreases. A test file of 300 GB was written to the medium. After approx. 176 GB, the pSLC-Cache was full and the performance was throttled.
At least the test file could be read with an average write speed of 3288 MB/s and written with 690 MB/s.

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the Western Digital M.2 SSD. The transfer data of the read speed is displayed graphically. The minimum, maximum and average values are also determined. The determined access time and burst rate are also displayed.

ATTO Disk Benchmark

Here, a 256 MB file is written several times to the Western Digital M.2 SSD. The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster they can be written and read.

SSD-Z Benchmark

Similar to HD Tune, a 500 MB file is written to the Western Digital M.2 SSD here. The transfer data is displayed. The more constant the line, the better.

The benchmark test was performed on August 09, 2024.
Information about the test system can be found at the bottom of the home page.
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