TEST: Transcend JetFlash 780 128GB USB flash driveJetFlash 780

Here you can find a detailed performance and benchmark test.
The the USB flash drive JetFlash 780 with 128GB (TS128GJF780) from Transcend was tested.


Technical data
Manufacturer Transcend
Type TS128GJF780
Storage capacity 128 GB (113 GiB)
Read speed 400 MB/s
Write speed 150 MB/s
DRAM Cache no
Price 74 USD (= 0,58 $ / GB)
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Score
131
Price/GB
0,58 $
Compared to the top performer*
Read speed
36 %
Write speed
25 %

*) 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 131 points was achieved.

AS SSD TEST: Transcend JetFlash 780 128GB

AS SSD Read: Write:
Seq
in megabytes per second
355,86 MB/s
150,84 MB/s
4K
in megabytes per second
15,27 MB/s
9,34 MB/s
4K-64Thrd
in megabytes per second
15,49 MB/s
9,23 MB/s
Access time
in milliseconds
0,126 ms
0,604 ms
Score
66
34
Total score
131

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 27.11.2020 shows the performance for simultaneous write and read operations. The lower the duration, the better.

AS SSD TEST: Transcend JetFlash 780 128GB
AS SSD Kopier-Benchmark Transferrate: Dauer:
ISO
two large files
145,75 MB/s
7,37 s
Program
many small files
48,81 MB/s
28,82 s
Game
small and large files
102,43 MB/s
13,48 s

Compression Performance Test

Here, the write as well as read speed (according to the manufacturer 400 MB/s and 150 MB/s) the Transcend USB flash drive is measured depending on the compressibility of the data.

AS SSD TEST: Transcend JetFlash 780 128GB

CrystalDiskMark 7.0 Benchmark


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

CrystalDiskMark Benchmark TEST: Transcend JetFlash 780 128GB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
401,12
156,36
SEQ1M
Q1T1
401,07
157,68
RND4K
Q32T16
18,06
9,61
RND4K
Q1T1
16,18
9,65

ATTO Disk Benchmark 4

Here a 256 MB file is written several times to the 128 GB Transcend 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: Transcend JetFlash 780 128GB

HD Tune Pro 5.75 Benchmark

HD Tune writes a 1 GB file to the 128 GB Transcend 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: Transcend JetFlash 780 128GB

SSD-Z 16 Benchmark

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

SSD-Z TEST: Transcend JetFlash 780 128GB

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