TEST: Lexar SL660 BLAZE Gaming Portable SSD 1TB external SSD

Technical data
Image
Manufacturer	Lexar
Model number	LSL660X001T-RNNNG
Storage capacity	1024 GB (954 GiB)
pSLC-Cache	97 GB approx.
Read speed	2000 MB/s
Write speed	1900 MB/s
Interface	USB 3.2 Gen 2x2 (20 Gbit/s)
Connection	USB Typ C
Size (LxWxH)	112 x 57.4 x 10.6 mm
Weight	80 gram
Price	ca. 165 AUD (= 0,16 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

56 %

Write speed

51 %

*) 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 1229 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	1916,97 MB/s	1685,80 MB/s
4K in megabytes per second	23,75 MB/s	79,03 MB/s
4K-64Thrd in megabytes per second	223,81 MB/s	321,77 MB/s
Access time in milliseconds	0,048 ms	0,660 ms
Score	439	569
Total score	1229

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 December 11, 2022 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	826,07 MB/s	2,78 s
Program many small files	139,96 MB/s	50,29 s
Game small and large files	508,63 MB/s	13,58 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 2000MB/s and 1900MB/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	2075,88	1867,63
SEQ1M Q1T1	1868,05	1713,74
RND4K Q32T16	233,90	372,92
RND4K Q1T1	27,45	86,40