TEST: Western Digital WD Red SN700 500GB M.2 SSD

Technical data
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Manufacturer	Western Digital
Model number	WDS500G1R0C
Storage capacity	500 GB (466 GiB)
pSLC-Cache	6 GB approx.
Read speed	3430 MB/s
Write speed	2600 MB/s
Interface	PCIe 3.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	✓ yes
TBW (Total Bytes Written)	1000 Terabyte
Controller	WD 20-82-00700-A2
Price	ca. 70 AUD (= 0,14 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

89 %

Write speed

81 %

*) 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 3401 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	3043,19 MB/s	2600,01 MB/s
4K in megabytes per second	51,24 MB/s	172,33 MB/s
4K-64Thrd in megabytes per second	1026,78 MB/s	892,05 MB/s
Access time in milliseconds	0,022 ms	0,107 ms
Score	1382	1324
Total score	3401

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 02, 2023 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	2120,18 MB/s	1,08 s
Program many small files	1104,90 MB/s	6,37 s
Game small and large files	1441,14 MB/s	4,79 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 3430MB/s and 2600MB/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	3405,42	2715,82
SEQ1M Q1T1	2060,25	2717,38
RND4K Q32T16	1483,89	1722,03
RND4K Q1T1	47,52	195,60