TEST: Western Digital WD Green SN350 240GB M.2 SSDWD Green SN350

Here you can find a detailed performance and benchmark test.
The the M.2 NVMe SSD WD Green SN350 with 240GB (WDS240G2G0C) from Western Digital was tested.


Technical data
Manufacturer Western Digital
Type WDS240G2G0C
Storage capacity 240 GB (224 GiB)
Read speed 2400 MB/s
Write speed 900 MB/s
Interface PCIe 3.0 x4
Form factor M.2 2280
Memory module (NAND) TLC
DRAM Cache no
TBW (Total Bytes Written) 40 Terabyte
Controller WD 20-82-01008-A2
Price 26 USD (= 0,11 $ / GB)
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Score
1405
Price/GB
0,11 $
Compared to the top performer*
Read speed
38 %
Write speed
11 %

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

AS SSD Benchmark 2.0

Standard performance test

The standard test was performed with a 5 GB file. Here, a total score of 1405 points was achieved.

AS SSD TEST: Western Digital WD Green SN350 240GB

AS SSD Read: Write:
Seq
in megabytes per second
2005,38 MB/s
274,65 MB/s
4K
in megabytes per second
45,73 MB/s
100,39 MB/s
4K-64Thrd
in megabytes per second
567,42 MB/s
120,43 MB/s
Access time
in milliseconds
0,031 ms
0,442 ms
Score
814
248
Total score
1405

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 Windows Copy command (the cache remains enabled). The practical test of 24.06.2022 shows the performance for simultaneous write and read operations. The lower the duration, the better.

AS SSD TEST: Western Digital WD Green SN350 240GB
AS SSD Kopier-Benchmark Transferrate: Dauer:
ISO
two large files
1270,81 MB/s
1,81 s
Program
many small files
170,41 MB/s
41,31 s
Game
small and large files
133,90 MB/s
51,59 s

Compression Performance Test

Here, the write as well as read speed (according to the manufacturer 2400 MB/s and 900 MB/s) the Western Digital SSD is measured depending on the compressibility of the data.

AS SSD TEST: Western Digital WD Green SN350 240GB

CrystalDiskMark 7.0 Benchmark


Similar to AS SSD, two sequential and two random performance tests are performed.

CrystalDiskMark Benchmark TEST: Western Digital WD Green SN350 240GB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
2334,14
558,32
SEQ1M
Q1T1
1508,54
142,14
RND4K
Q32T16
500,97
209,40
RND4K
Q1T1
43,01
154,95

Input/Output operations per second

CDM Read [IPOS] Write [IPOS]
SEQ1M
Q8T1
2.226,00
532,50
SEQ1M
Q1T1
1.438,70
135,60
RND4K
Q32T16
122.307,00
51.122,30
RND4K
Q1T1
10.500,00
37.830,30

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
3.590,54
14.899,50
SEQ1M
Q1T1
694,64
7.368,82
RND4K
Q32T16
4.177,09
9.988,40
RND4K
Q1T1
95,07
26,24

ATTO Disk Benchmark 4

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 usually be written and read.

ATTO Disk Benchmark TEST: Western Digital WD Green SN350 240GB

HD Tune Pro 5.75 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.

HD Tune TEST: Western Digital WD Green SN350 240GB

HD Tune Endurance test

A long-term test was performed here to fully utilize the memory. You can see when a cache is full and the write performance decreases.

HD Tune Dauertest TEST: Western Digital WD Green SN350 240GB

SSD-Z 16 Benchmark

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

SSD-Z TEST: Western Digital WD Green SN350 240GB

Information about the test system can be found at the bottom of the home page.