TEST: Lexar Jumpdrive M45 128GB USB flash driveJumpdrive M45

Here you can find a detailed performance and benchmark test.
The the USB flash drive Jumpdrive M45 with 128GB (LJDM45-128ABSL) from Lexar was tested.


Technical data
Manufacturer Lexar
Type LJDM45-128ABSL
Storage capacity 128 GB (116 GiB)
Read speed 250 MB/s
Write speed 40 MB/s
Price 24 USD (= 0,19 $ / GB)
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Score
105
Price/GB
0,19 $
Compared to the top performer*
Read speed
26 %
Write speed
8 %

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

AS SSD Benchmark 2.0

Standard performance test

The standard test was performed with a 1 GB file. Here, a total score of 105 points was achieved.

AS SSD TEST: Lexar Jumpdrive M45 128GB

AS SSD Read: Write:
Seq
in megabytes per second
257,42 MB/s
49,92 MB/s
4K
in megabytes per second
14,94 MB/s
8,79 MB/s
4K-64Thrd
in megabytes per second
15,70 MB/s
9,55 MB/s
Access time
in milliseconds
0,269 ms
1,198 ms
Score
56
23
Total score
105

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 Windows Copy command (the cache remains enabled). The practical test of 01.03.2021 shows the performance for simultaneous write and read operations. The lower the duration, the better.

AS SSD TEST: Lexar Jumpdrive M45 128GB
AS SSD Kopier-Benchmark Transferrate: Dauer:
ISO
two large files
48,89 MB/s
21,97 s
Program
many small files
30,23 MB/s
46,54 s
Game
small and large files
45,79 MB/s
30,16 s

Compression Performance Test

Here, the write as well as read speed (according to the manufacturer 250 MB/s and 40 MB/s) the Lexar USB flash drive is measured depending on the compressibility of the data.

AS SSD TEST: Lexar Jumpdrive M45 128GB

CrystalDiskMark 7.0 Benchmark


Similar to AS SSD, two sequential and two random performance tests are performed.

CrystalDiskMark Benchmark TEST: Lexar Jumpdrive M45 128GB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
270,70
63,77
SEQ1M
Q1T1
271,40
34,14
RND4K
Q32T16
19,06
7,02
RND4K
Q1T1
16,62
7,20

Input/Output operations per second

CDM Read [IPOS] Write [IPOS]
SEQ1M
Q8T1
258,20
60,80
SEQ1M
Q1T1
258,80
32,60
RND4K
Q32T16
4.653,10
1.713,60
RND4K
Q1T1
4.056,60
1.757,30

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
30.862,80
56.920,10
SEQ1M
Q1T1
3.860,14
30.693,70
RND4K
Q32T16
82.409,00
200.451,00
RND4K
Q1T1
246,20
568,34

ATTO Disk Benchmark 4

Here a 256 MB file is written several times to the 128 GB Lexar USB flash drive. The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster they can usually be written and read.

ATTO Disk Benchmark TEST: Lexar Jumpdrive M45 128GB

HD Tune Pro 5.75 Benchmark

HD Tune writes a 1 GB file to the 128 GB Lexar USB flash drive. 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 Jumpdrive M45 128GB

HD Tune Endurance test

A long-term test was performed here to fully utilize the memory. You can see when a cache is full and the write performance decreases.

HD Tune Dauertest TEST: Lexar Jumpdrive M45 128GB

SSD-Z 16 Benchmark

Similar to HD Tune, a 500 MB file is written to the 128 GB Lexar USB flash drive here. is written. The transfer data is displayed. The more constant the line, the better.

SSD-Z TEST: Lexar Jumpdrive M45 128GB

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