TEST: Transcend JetFlash 780 32GB USB flash driveJetFlash 780

Here you can find a detailed performance and benchmark test.
The the USB flash drive JetFlash 780 with 32GB (TS32GJF780) from Transcend was tested.


Technical data
Manufacturer Transcend
Type TS32GJF780
Storage capacity 32 GB (0 GiB)
Read speed 400 MB/s
Write speed 150 MB/s
DRAM Cache no
Price 25 USD (= 0,78 $ / GB)
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Score
115
Price/GB
0,78 $
Compared to the top performer*
Read speed
99 %
Write speed
68 %

*) 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 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 Windows Copy command (the cache remains enabled). The practical test of 23.12.2020 shows the performance for simultaneous write and read operations. The lower the duration, the better.

AS SSD TEST: Transcend JetFlash 780 32GB
AS SSD Kopier-Benchmark Transferrate: Dauer:
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 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 32GB

CrystalDiskMark 7.0 Benchmark


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

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 [IPOS] Write [IPOS]
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

ATTO Disk Benchmark 4

Here a 256 MB file is written several times to the 32 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 32GB

HD Tune Pro 5.75 Benchmark

HD Tune writes a 1 GB file to the 32 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 32GB

SSD-Z 16 Benchmark

Similar to HD Tune, a 500 MB file is written to the 32 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 32GB

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