TEST: Lexar NM790 1TB M.2 SSD

Here you can find a detailed performance and benchmark test of the M.2 NVMe SSD NM790 with 1TB (LNM790X001T-RNNNG) from Lexar.
Score
7029
Price/GB
0,07 €


Technical data
Image NM790
Manufacturer Lexar
Model number LNM790X001T-RNNNG
Storage capacity 1024 GB (954 GiB)
pSLC-Cache 120 GB approx.
Read speed 7400 MB/s
Write speed 6500 MB/s
Interface PCIe 4.0 x4
Connection M.2 2280
Memory module (NAND) TLC
DRAM Cache no
TBW (Total Bytes Written) 1000 Terabyte
Controller Maxio MAP1602
Price ca. 75 USD (= 0,07 $ / GB)
Paid link Buy on Amazon
Compare Product
Compared to the top performer*
Read speed
100 %
Write speed
96 %

*) 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 7029 points was achieved.

AS SSD TEST: Lexar NM790 1TB

AS SSD Read: Write:
Seq
in megabytes per second
6165,66 MB/s
5658,94 MB/s
4K
in megabytes per second
68,78 MB/s
173,44 MB/s
4K-64Thrd
in megabytes per second
2492,49 MB/s
1513,54 MB/s
Access time
in milliseconds
0,022 ms
0,269 ms
Score
3178
2253
Total score
7029

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 August 28, 2023 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: Lexar NM790 1TB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
2241,82 MB/s
1,03 s
Program
many small files
1149,77 MB/s
6,12 s
Game
small and large files
1979,12 MB/s
3,49 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 7400MB/s and 6500MB/s respectively).

AS SSD TEST: Lexar NM790 1TB

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 NM790 1TB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
7453,28
6613,45
SEQ1M
Q1T1
5114,82
5575,22
RND4K
Q32T16
3429,78
2088,35
RND4K
Q1T1
76,54
180,10

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
7.108,00
6.307,10
SEQ1M
Q1T1
4.877,90
5.316,90
RND4K
Q32T16
837.348,00
509.850,00
RND4K
Q1T1
18.686,80
43.968,50

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
1.124,68
1.265,99
SEQ1M
Q1T1
204,85
187,89
RND4K
Q32T16
591,86
1.003,12
RND4K
Q1T1
53,39
22,60

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 200 GB was written to the medium. After approx. 120 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 4732 MB/s and written with 2679 MB/s.

HD Tune Endurance Test TEST: Lexar NM790 1TB

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 NM790 1TB

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 NM790 1TB

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. Unfortunately the tool does not work correctly above about 5,000 MB/s and no line (and sometimes wrong min and max data) is displayed.

SSD-Z TEST: Lexar NM790 1TB


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