TEST: Western Digital WD_BLACK SN770 2TB M.2 SSDWD_BLACK SN770

Here you can find a detailed performance and benchmark test.
The the M.2 NVMe SSD WD_BLACK SN770 with 2TB (WDS200T3X0E) from Western Digital was tested.


Technical data
Manufacturer Western Digital
Type WDS200T3X0E
Storage capacity 2048 GB (1863 GiB)
Read speed 5150 MB/s
Write speed 4850 MB/s
Interface PCIe 4.0 x4
Form factor M.2 2280
Memory module (NAND) TLC
DRAM Cache no
TBW (Total Bytes Written) 1200 Terabyte
Controller WD 20-82-10081-A1
Price 129 USD (= 0,06 $ / GB)
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Compare Product
Score
4864
Price/GB
0,06 $
Compared to the top performer*
Read speed
73 %
Write speed
69 %

*) 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 4864 points was achieved.

AS SSD TEST: Western Digital WD_BLACK SN770 2TB

AS SSD Read: Write:
Seq
in megabytes per second
4506,50 MB/s
4213,61 MB/s
4K
in megabytes per second
59,64 MB/s
188,72 MB/s
4K-64Thrd
in megabytes per second
1057,07 MB/s
1887,24 MB/s
Access time
in milliseconds
0,020 ms
0,118 ms
Score
1567
2497
Total score
4864

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 19.11.2022 shows the performance for simultaneous write and read operations. The lower the duration, the better.

AS SSD TEST: Western Digital WD_BLACK SN770 2TB
AS SSD Kopier-Benchmark Transferrate: Dauer:
ISO
two large files
1886,94 MB/s
1,22 s
Program
many small files
1222,87 MB/s
5,76 s
Game
small and large files
1824,70 MB/s
3,79 s

Compression Performance Test

Here, the write as well as read speed (according to the manufacturer 5150 MB/s and 4850 MB/s) the Western Digital SSD is measured depending on the compressibility of the data.

AS SSD TEST: Western Digital WD_BLACK SN770 2TB

CrystalDiskMark 7.0 Benchmark


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

CrystalDiskMark Benchmark TEST: Western Digital WD_BLACK SN770 2TB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
5225,77
4771,83
SEQ1M
Q1T1
4066,64
4745,67
RND4K
Q32T16
1689,88
2564,44
RND4K
Q1T1
50,83
217,96

Input/Output operations per second

CDM Read [IPOS] Write [IPOS]
SEQ1M
Q8T1
4.983,70
4.550,80
SEQ1M
Q1T1
3.878,30
4.525,80
RND4K
Q32T16
412.568,00
626.083,00
RND4K
Q1T1
12.409,90
53.212,90

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
1.604,60
1.754,66
SEQ1M
Q1T1
257,61
220,74
RND4K
Q32T16
1.236,21
815,57
RND4K
Q1T1
80,43
18,66

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_BLACK SN770 2TB

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_BLACK SN770 2TB

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_BLACK SN770 2TB

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_BLACK SN770 2TB

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