TEST: Lexar NM620 512GB M.2 SSD

Technical data
Image
Manufacturer	Lexar
Model number	LNM620X512G-RNNN
Storage capacity	512 GB (477 GiB)
pSLC-Cache	68 GB approx.
Read speed	3300 MB/s
Write speed	2400 MB/s
Interface	PCIe 3.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	no
TBW (Total Bytes Written)	250 Terabyte
Controller	Maxio MAP1202
Price	ca. 40 AUD (= 0,08 $ / GB)
Paid link	Buy on Amazon

Compare Product

Compared to the top performer*

Read speed

95 %

Write speed

81 %

*) 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 2928 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	3208,02 MB/s	2409,91 MB/s
4K in megabytes per second	52,97 MB/s	159,08 MB/s
4K-64Thrd in megabytes per second	627,40 MB/s	1039,94 MB/s
Access time in milliseconds	0,023 ms	0,697 ms
Score	1001	1440
Total score	2928

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 July 18, 2024 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	2172,08 MB/s	1,06 s
Program many small files	1092,22 MB/s	6,44 s
Game small and large files	1936,65 MB/s	3,57 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 3300MB/s and 2400MB/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	3648,85	2695,60
SEQ1M Q1T1	2582,80	2534,93
RND4K Q32T16	697,42	1340,26
RND4K Q1T1	60,19	174,96