TEST: Western Digital WD Blue SN550 1TB M.2 SSDWD Blue SN550

Here you can find a detailed performance and benchmark test.
The the M.2 NVMe SSD WD Blue SN550 with 1TB (WDS100T2B0C) from Western Digital was tested.


Technical data
Manufacturer Western Digital
Type WDS100T2B0C
Storage capacity 1024 GB (931 GiB)
Read speed 2400 MB/s
Write speed 1950 MB/s
Interface PCIe 3.0 x4
Form factor M.2 2280
Memory module (NAND) TLC
DRAM Cache no
TBW (Total Bytes Written) 600 Terabyte
Controller WD 20-82-01008-A1
Price 70 USD (= 0,07 $ / GB)
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Compare Product
Score
2993
Price/GB
0,07 $
Compared to the top performer*
Read speed
36 %
Write speed
33 %

*) 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 2993 points was achieved.

AS SSD TEST: Western Digital WD Blue SN550 1TB

AS SSD Read: Write:
Seq
in megabytes per second
2230,34 MB/s
1934,07 MB/s
4K
in megabytes per second
47,13 MB/s
171,13 MB/s
4K-64Thrd
in megabytes per second
982,01 MB/s
741,29 MB/s
Access time
in milliseconds
0,022 ms
0,259 ms
Score
1252
1106
Total score
2993

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 17.02.2021 shows the performance for simultaneous write and read operations. The lower the duration, the better.

AS SSD TEST: Western Digital WD Blue SN550 1TB
AS SSD Kopier-Benchmark Transferrate: Dauer:
ISO
two large files
1819,45 MB/s
1,26 s
Program
many small files
768,36 MB/s
9,16 s
Game
small and large files
1451,04 MB/s
4,76 s

Compression Performance Test

Here, the write as well as read speed (according to the manufacturer 2400 MB/s and 1950 MB/s) the Western Digital SSD is measured depending on the compressibility of the data.

AS SSD TEST: Western Digital WD Blue SN550 1TB

CrystalDiskMark 7.0 Benchmark


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

CrystalDiskMark Benchmark TEST: Western Digital WD Blue SN550 1TB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
2441,99
2038,74
SEQ1M
Q1T1
1877,74
2041,73
RND4K
Q32T16
1309,17
1625,06
RND4K
Q1T1
44,64
193,69

Input/Output operations per second

CDM Read [IPOS] Write [IPOS]
SEQ1M
Q8T1
2.328,90
1.944,30
SEQ1M
Q1T1
1.790,70
1.947,20
RND4K
Q32T16
319.620,00
396.742,00
RND4K
Q1T1
10.897,90
47.288,60

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
3.432,43
4.103,40
SEQ1M
Q1T1
557,95
513,08
RND4K
Q32T16
1.599,40
1.289,17
RND4K
Q1T1
91,54
21,00

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 Blue SN550 1TB

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 Blue SN550 1TB

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 Blue SN550 1TB

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