TEST: Lexar NM620 2TB M.2 SSD

Technical data
Image
Manufacturer	Lexar
Model number	LNM620X002T-RNNN
Storage capacity	2048 GB (1908 GiB)
pSLC-Cache	150 GB approx.
Read speed	3300 MB/s
Write speed	3000 MB/s
Interface	PCIe 3.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	no
TBW (Total Bytes Written)	1000 Terabyte
Controller	InnoGrit IG5216
Price	ca. 103 AUD (= 0,05 $ / GB)
Paid link	Buy on Amazon

Compare Product

Compared to the top performer*

Read speed

96 %

Write speed

90 %

*) 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 4360 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	3125,65 MB/s	2821,12 MB/s
4K in megabytes per second	56,97 MB/s	151,97 MB/s
4K-64Thrd in megabytes per second	1457,29 MB/s	1172,88 MB/s
Access time in milliseconds	0,023 ms	0,539 ms
Score	1827	1607
Total score	4360

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 April 19, 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	2194,36 MB/s	1,05 s
Program many small files	1113,41 MB/s	6,32 s
Game small and large files	1935,44 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 3000MB/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	3591,16	3111,07
SEQ1M Q1T1	2470,31	2855,79
RND4K Q32T16	2145,61	1434,31
RND4K Q1T1	65,10	172,72