TEST: Western Digital WD Blue SN550 2TB M.2 SSD

Here you can find a detailed performance and benchmark test of the M.2 NVMe SSD WD Blue SN550 with 2TB (WDS200T2B0C) from Western Digital.
Score
3657
Price/GB
0,10 €


Technical data
Image WD Blue SN550
Manufacturer Western Digital
Model number WDS200T2B0C
Storage capacity 2048 GB (1863 GiB)
Read speed 2600 MB/s
Write speed 1800 MB/s
Interface PCIe 3.0 x4
Connection M.2 2280
Memory module (NAND) TLC
DRAM Cache no
TBW (Total Bytes Written) 900 Terabyte
Controller WD 20-82-01008-A1
Price ca. 200 USD (= 0,10 $ / GB)
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Compared to the top performer*
Read speed
70 %
Write speed
55 %

*) 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 3657 points was achieved.

AS SSD TEST: Western Digital WD Blue SN550 2TB

AS SSD Read: Write:
Seq
in megabytes per second
2331,36 MB/s
1807,95 MB/s
4K
in megabytes per second
46,55 MB/s
172,29 MB/s
4K-64Thrd
in megabytes per second
893,90 MB/s
1546,70 MB/s
Access time
in milliseconds
0,022 ms
0,224 ms
Score
1174
1900
Total score
3657

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 February 22, 2021 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: Western Digital WD Blue SN550 2TB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
1641,26 MB/s
1,40 s
Program
many small files
709,01 MB/s
9,93 s
Game
small and large files
1398,63 MB/s
4,94 s

Compression Performance Test

This measures the write and read speed of the Western Digital SSD, depending on the compressibility of the data (according to the manufacturer, these should be 2600 MB/s and 1800 MB/s respectively).

AS SSD TEST: Western Digital WD Blue SN550 2TB

CrystalDiskMark Benchmark

Here, two sequential and two random performance tests are performed, similar to the ones performed on the AS SSD.

CrystalDiskMark Benchmark TEST: Western Digital WD Blue SN550 2TB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
2597,87
1890,68
SEQ1M
Q1T1
1938,77
1893,47
RND4K
Q32T16
899,22
1596,16
RND4K
Q1T1
44,05
181,21

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
2.477,50
1.803,10
SEQ1M
Q1T1
1.849,00
1.805,80
RND4K
Q32T16
219.537,00
389.687,00
RND4K
Q1T1
10.754,40
44.240,70

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
3.226,48
4.428,72
SEQ1M
Q1T1
540,39
553,22
RND4K
Q32T16
2.329,81
1.311,61
RND4K
Q1T1
92,74
22,44

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.

HD Tune TEST: Western Digital WD Blue SN550 2TB

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 were written and read.

ATTO Disk Benchmark TEST: Western Digital WD Blue SN550 2TB


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