TEST: Crucial X8 1TB external SSD

Technical data
Image
Manufacturer	Crucial
Model number	CT1000X8SSD9
Storage capacity	1024 GB (930 GiB)
pSLC-Cache	250 GB approx.
Read speed	1050 MB/s
Write speed	1050 MB/s
Interface	USB 3.2 Gen 2x1 (10 Gbit/s)
Connection	USB Typ C
Size (LxWxH)	110 x 53 x 11.5 mm
Weight	100 gram
Price	ca. 88 AUD (= 0,09 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

28 %

Write speed

28 %

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

AS SSD Benchmark

Standard performance test

The standard test was performed with a 5 GB file. A total score of 1051 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	960,95 MB/s	925,01 MB/s
4K in megabytes per second	26,61 MB/s	88,82 MB/s
4K-64Thrd in megabytes per second	237,37 MB/s	317,75 MB/s
Access time in milliseconds	0,067 ms	0,209 ms
Score	360	499
Total score	1051

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 June 21, 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	643,79 MB/s	3,57 s
Program many small files	276,65 MB/s	25,44 s
Game small and large files	467,84 MB/s	14,77 s

Compression Performance Test

Here, the writing and reading speed of the SSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 1050MB/s and 1050MB/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	1050,55	1014,13
SEQ1M Q1T1	836,59	967,88
RND4K Q32T16	292,44	396,33
RND4K Q1T1	38,19	96,61