TEST: Lexar NM620 256GB M.2 SSD

Here you can find a detailed performance and benchmark test of the M.2 NVMe SSD NM620 with 256GB (LNM620X256G-RNNN) from Lexar.
Score
2265
Price/GB
0,12 €


Technical data
Image NM620
Manufacturer Lexar
Model number LNM620X256G-RNNN
Storage capacity 256 GB (238 GiB)
Read speed 3000 MB/s
Write speed 1300 MB/s
Interface PCIe 3.0 x4
Connection M.2 2280
Memory module (NAND) TLC
DRAM Cache no
TBW (Total Bytes Written) 125 Terabyte
Controller InnoGrit IG5216
Price ca. 31 USD (= 0,12 $ / GB)
Paid link Buy on Amazon
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Compared to the top performer*
Read speed
93 %
Write speed
69 %

*) 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 2265 points was achieved.

AS SSD TEST: Lexar NM620 256GB

AS SSD Read: Write:
Seq
in megabytes per second
2882,39 MB/s
1735,15 MB/s
4K
in megabytes per second
72,47 MB/s
150,01 MB/s
4K-64Thrd
in megabytes per second
518,20 MB/s
644,15 MB/s
Access time
in milliseconds
0,118 ms
0,789 ms
Score
879
968
Total score
2265

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 February 14, 2022 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: Lexar NM620 256GB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
1377,69 MB/s
1,67 s
Program
many small files
933,65 MB/s
7,54 s
Game
small and large files
1508,10 MB/s
4,58 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 3000MB/s and 1300MB/s respectively).

AS SSD TEST: Lexar NM620 256GB

CrystalDiskMark Benchmark

Here, two sequential and two random performance tests are performed, similar to the ones performed on the AS SSD.

CrystalDiskMark Benchmark TEST: Lexar NM620 256GB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
3381,31
1871,62
SEQ1M
Q1T1
2480,70
1877,38
RND4K
Q32T16
551,51
781,01
RND4K
Q1T1
76,85
163,70

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
3.224,70
1.784,90
SEQ1M
Q1T1
2.365,80
1.790,40
RND4K
Q32T16
134.645,00
190.677,00
RND4K
Q1T1
18.763,20
39.966,10

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
2.478,80
4.474,16
SEQ1M
Q1T1
422,45
558,17
RND4K
Q32T16
3.798,96
2.667,37
RND4K
Q1T1
53,19
24,90

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.

HD Tune Endurance Test TEST: Lexar NM620 256GB

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.

HD Tune TEST: Lexar NM620 256GB

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.

ATTO Disk Benchmark TEST: Lexar NM620 256GB

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.

SSD-Z TEST: Lexar NM620 256GB


Information about the test system can be found at the bottom of the home page.
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