TEST: Lexar NM620 512GB M.2 SSD

Here you can find a detailed performance and benchmark test of the M.2 NVMe SSD NM620 with 512GB (LNM620X512G-RNNN) from Lexar.
Score
2928
Price/GB
0,07 €


Technical data
Image NM620
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. 34 USD (= 0,07 $ / GB)
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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 using a 5 GB file. A total score of 2928 points was achieved.

AS SSD TEST: Lexar NM620 512GB

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 TEST: Lexar NM620 512GB
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

This measures the write and read 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).

AS SSD TEST: Lexar NM620 512GB

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 512GB
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

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
3.479,80
2.570,70
SEQ1M
Q1T1
2.463,20
2.417,50
RND4K
Q32T16
170.269,00
327.211,00
RND4K
Q1T1
14.695,80
42.715,10

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
2.297,42
3.106,75
SEQ1M
Q1T1
405,77
413,39
RND4K
Q32T16
3.003,09
1.563,26
RND4K
Q1T1
67,92
23,29

HD Tune Pro Endurance test

This is a long term test 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 100 GB was written to the medium. After approx. 68 GB, the pSLC-Cache was full and the performance was throttled.
At least the test file could be read with an average write speed of 2353 MB/s and written with 1218 MB/s.

HD Tune Endurance Test TEST: Lexar NM620 512GB

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 512GB

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 512GB

SSD-Z Benchmark

Similar to HD Tune, a 500 MB file is written to the Lexar M.2 SSD here. The transfer data is displayed. The more constant the line, the better.

SSD-Z TEST: Lexar NM620 512GB


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