TEST: Transcend JetFlash 780 32GB USB flash drive

Here you can find a detailed performance and benchmark test of the USB flash drive JetFlash 780 with 32GB (TS32GJF780) from Transcend.
Score
115
Price/GB
0,63 €


Technical data
Image JetFlash 780
Manufacturer Transcend
Model number TS32GJF780
Storage capacity 32 GB (28 GiB)
Read speed 400 MB/s
Write speed 150 MB/s
Connection USB Typ A
Price ca. 20 AUD (= 0,63 $ / GB)
Paid link Buy on Amazon
Compare Product
Compared to the top performer*
Read speed
100 %
Write speed
41 %

*) 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 1 GB file. A total score of 115 points was achieved.

AS SSD TEST: Transcend JetFlash 780 32GB

AS SSD Read: Write:
Seq
in megabytes per second
378,19 MB/s
50,79 MB/s
4K
in megabytes per second
14,59 MB/s
9,13 MB/s
4K-64Thrd
in megabytes per second
14,99 MB/s
8,92 MB/s
Access time
in milliseconds
0,141 ms
0,607 ms
Score
67
23
Total score
115

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 December 23, 2020 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: Transcend JetFlash 780 32GB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
49,34 MB/s
21,77 s
Program
many small files
31,57 MB/s
44,56 s
Game
small and large files
43,79 MB/s
31,54 s

Compression Performance Test

Here, the writing and reading speed of the the Transcend USB flash driveSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 400MB/s and 150MB/s respectively).

AS SSD TEST: Transcend JetFlash 780 32GB

CrystalDiskMark Benchmark

Here, two sequential and two random performance tests are performed, similar to the ones performed on the AS SSD.

CrystalDiskMark Benchmark TEST: Transcend JetFlash 780 32GB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
381,43
51,33
SEQ1M
Q1T1
383,14
51,52
RND4K
Q32T16
16,94
9,14
RND4K
Q1T1
15,33
9,25

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
363,80
49,00
SEQ1M
Q1T1
365,40
49,10
RND4K
Q32T16
4.135,50
2.230,70
RND4K
Q1T1
3.741,90
2.258,50

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
21.927,00
160.412,00
SEQ1M
Q1T1
2.735,79
20.302,80
RND4K
Q32T16
86.388,90
131.876,00
RND4K
Q1T1
266,97
441,90