TEST: Lexar Professional NM1090 Pro 2TB M.2 SSD

Technical data
Image
Manufacturer	Lexar
Model number	LNM109P002T-RNNNG
Storage capacity	2048 GB (1908 GiB)
pSLC-Cache	>260 GB approx.
Read speed	14000 MB/s
Write speed	13000 MB/s
Interface	PCIe 5.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	✓ yes
TBW (Total Bytes Written)	1400 Terabyte
Controller	Silicon Motion SM2508
Price	ca. 0 AUD (= 0,11 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

96 %

Write speed

98 %

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

This SSD is PS5 compatible. It can be used in a PlayStation 5 console as expansion storage.

AS SSD Benchmark

Standard performance test

The standard test was performed with a 5 GB file. A total score of 12264 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	10685,80 MB/s	11265,30 MB/s
4K in megabytes per second	69,44 MB/s	205,57 MB/s
4K-64Thrd in megabytes per second	3012,28 MB/s	4642,43 MB/s
Access time in milliseconds	0,029 ms	0,107 ms
Score	4150	5975
Total score	12264

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 May 21, 2025 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	4207,55 MB/s	0,55 s
Program many small files	1407,71 MB/s	5,00 s
Game small and large files	2583,45 MB/s	2,67 s

Compression Performance Test

Here, the writing and reading speed of the the Lexar SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 14000MB/s and 13000MB/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	14194,10	13252,60
SEQ1M Q1T1	5747,31	9506,32
RND4K Q32T16	5420,31	4200,97
RND4K Q1T1	75,37	231,33

HD Tune Pro Endurance test

A long-term test was performed here 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 260 GB was written to the medium. The exact cache size could not be determined, because the test file did not exhaust the cache (brought it to the limit).At least the test file could be read with an average write speed of 11287 MB/s and written with 11230 MB/s.

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the Lexar 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.

ATTO Disk Benchmark

Here, a 256 MB file is written several times to the Lexar M.2 SSD . The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster they can be written and read.

SSD-Z Benchmark

Similar to HD Tune, a 500 MB file is written to the Lexar M.2 SSD here. is written. The transfer data is displayed. The more constant the line, the better. Unfortunately the tool does not work correctly from about 5,000 MB/s and no line (and partly wrong min and max data) is displayed.

The benchmark test was performed on May 21, 2025.
Information about the test system can be found at the bottom of the home page.
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