TEST: Lexar Professional NM700 512GB M.2 SSD

Technical data
Image
Manufacturer	Lexar
Model number	LNM700-512RB
Storage capacity	512 GB (477 GiB)
Read speed	3500 MB/s
Write speed	2000 MB/s
Interface	PCIe 3.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	✓ yes
TBW (Total Bytes Written)	300 Terabyte
Controller	Marvell 88SS1092
Price	ca. 104 AUD (= 0,20 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

91 %

Write speed

59 %

*) 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 3820 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	3081,22 MB/s	1888,09 MB/s
4K in megabytes per second	54,58 MB/s	143,44 MB/s
4K-64Thrd in megabytes per second	1268,93 MB/s	1072,21 MB/s
Access time in milliseconds	0,067 ms	0,121 ms
Score	1632	1404
Total score	3820

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 January 11, 2021 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	1549,53 MB/s	1,48 s
Program many small files	728,07 MB/s	9,67 s
Game small and large files	1415,52 MB/s	4,88 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 3500MB/s and 2000MB/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	3496,07	1958,08
SEQ1M Q1T1	2642,18	1952,30
RND4K Q32T16	1363,91	1124,01
RND4K Q1T1	61,07	176,28