TEST: Lexar EQ790 1TB M.2 SSD

Technical data
Image
Manufacturer	Lexar
Model number	LEQ790X001T-RNNNG
Storage capacity	1024 GB (932 GiB)
pSLC-Cache	224 GB approx.
Read speed	7000 MB/s
Write speed	6000 MB/s
Interface	PCIe 4.0 x4
Connection	M.2 2280
Memory module (NAND)	QLC
DRAM Cache	no
TBW (Total Bytes Written)	600 Terabyte
Controller	Maxio MAP1602
Price	ca. 0 AUD (= 0,07 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

97 %

Write speed

89 %

*) Test result evaluated according to AS SSD Score within the same size.

This SSD is PS5 compatible. It can be used in a PlayStation 5 console as expansion storage.

AS SSD Benchmark

Standard performance test

The standard test was performed with a 5 GB file. A total score of 7540 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	6010,59 MB/s	5561,85 MB/s
4K in megabytes per second	69,03 MB/s	182,44 MB/s
4K-64Thrd in megabytes per second	2416,70 MB/s	2159,43 MB/s
Access time in milliseconds	0,022 ms	0,311 ms
Score	3087	2898
Total score	7540

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 20, 2025 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	2279,62 MB/s	1,01 s
Program many small files	1127,18 MB/s	6,24 s
Game small and large files	1923,59 MB/s	3,59 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 7000MB/s and 6000MB/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	7237,73	6124,71
SEQ1M Q1T1	5029,04	5358,03
RND4K Q32T16	2062,98	3268,38
RND4K Q1T1	73,95	196,42

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. A test file of 250 GB was written to the medium. After approx. 224 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 4471 MB/s and written with 892 MB/s.

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.

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.

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

The benchmark test was performed on February 20, 2025.
Information about the test system can be found at the bottom of the home page.
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