TEST: Lexar NM790 2TB M.2 SSD

Here you can find a detailed performance and benchmark test of the M.2 NVMe SSD NM790 with 2TB (LNM790X002T-RNNNG) from Lexar.
Score
6943
Price/GB
0,07 €


Technical data
Image NM790
Manufacturer Lexar
Model number LNM790X002T-RNNNG
Storage capacity 2048 GB (1908 GiB)
pSLC-Cache 195 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) 1500 Terabyte
Controller Maxio MAP1602
Price ca. 149 USD (= 0,07 $ / GB)
Paid link Buy on Amazon
Compare Product
Compared to the top performer*
Read speed
100 %
Write speed
95 %

*) 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 6943 points was achieved.

AS SSD TEST: Lexar NM790 2TB

AS SSD Read: Write:
Seq
in megabytes per second
6171,60 MB/s
5790,00 MB/s
4K
in megabytes per second
69,03 MB/s
173,51 MB/s
4K-64Thrd
in megabytes per second
2468,28 MB/s
1443,81 MB/s
Access time
in milliseconds
0,022 ms
0,265 ms
Score
3154
2196
Total score
6943

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 2TB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
2098,44 MB/s
1,10 s
Program
many small files
1136,63 MB/s
6,19 s
Game
small and large files
1947,78 MB/s
3,55 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 7400MB/s and 6500MB/s respectively).

AS SSD TEST: Lexar NM790 2TB

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 2TB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
7436,02
6695,31
SEQ1M
Q1T1
5115,66
5549,82
RND4K
Q32T16
3475,82
2198,97
RND4K
Q1T1
77,56
178,29

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
7.091,50
6.385,10
SEQ1M
Q1T1
4.878,70
5.292,70
RND4K
Q32T16
848.588,00
536.858,00
RND4K
Q1T1
18.934,60
43.528,30

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
1.126,74
1.250,66
SEQ1M
Q1T1
204,82
188,76
RND4K
Q32T16
584,03
952,64
RND4K
Q1T1
52,69
22,85

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 2TB

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 2TB


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