TEST: Western Digital WD_BLACK P40 Game Drive SSD 1TB external SSD

Technical data
Image
Manufacturer	Western Digital
Model number	WDBAWY0010BBK-WESN
Storage capacity	1024 GB (932 GiB)
pSLC-Cache	5 GB approx.
Read speed	2000 MB/s
Write speed	2000 MB/s
Interface	USB 3.2 Gen 2x2 (20 Gbit/s)
Connection	USB Typ C
Size (LxWxH)	106.98 x 50.82 x 13 mm
Weight	78 gram
Price	ca. 100 USD (= 0,10 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

56 %

Write speed

56 %

*) 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 1343 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	1867,46 MB/s	1890,16 MB/s
4K in megabytes per second	24,51 MB/s	70,71 MB/s
4K-64Thrd in megabytes per second	410,05 MB/s	138,09 MB/s
Access time in milliseconds	0,055 ms	0,344 ms
Score	621	398
Total score	1343

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 November 23, 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	119,65 MB/s	19,21 s
Program many small files	146,88 MB/s	47,92 s
Game small and large files	379,43 MB/s	18,21 s

Compression Performance Test

This measures the write and read speed of the the external SSD from Western Digital, depending on the compressibility of the data (according to the manufacturer, these should be 2000 MB/s and 2000 MB/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	2071,60	2051,46
SEQ1M Q1T1	1343,49	1763,63
RND4K Q32T16	455,09	459,15
RND4K Q1T1	36,06	78,26

HD Tune Pro Endurance test

This is a long term test to make full use of the memory capacity. You can see when a cache is full and the writing performance decreases. A test file of 50 GB was written to the medium. After approx. 5 GB, the pSLC-Cache was full and the performance was throttled.
At least the test file could be read with an average write speed of 1946 MB/s and written with 618 MB/s.

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the Western Digital external 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.

ATTO Disk Benchmark

Here, a 256 MB file is written several times to the Western Digital external SSD. The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster they were written and read.

SSD-Z Benchmark

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

The benchmark test was performed on November 23, 2023.
Information about the test system can be found at the bottom of the home page.
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