Technical data | |
Image | |
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. 140 AUD (= 0,07 $ / GB) |
Paid link | Buy on Amazon |
The standard test was performed with a 5 GB file. A total score of 6943 points was achieved.
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 |
A common everyday situation is simulated here. Three test folders are created:
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 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 |
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).
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 |
7436,02 |
6695,31 |
SEQ1M Q1T1 |
5115,66 |
5549,82 |
RND4K Q32T16 |
3475,82 |
2198,97 |
RND4K Q1T1 |
77,56 |
178,29 |
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 |
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 |