TEST: Transcend JetFlash 790 64GB USB flash drive

Here you can find a detailed performance and benchmark test of the USB flash drive JetFlash 790 with 64GB (TS64GJF790K) from Transcend.
Score
49
Price/GB
0,13 €


Technical data
Image JetFlash 790
Manufacturer Transcend
Model number TS64GJF790K
Storage capacity 64 GB (56 GiB)
Read speed 90 MB/s
Write speed 30 MB/s
Connection USB Typ A
Price ca. 8 USD (= 0,13 $ / GB)
Paid link Buy on Amazon
Compare Product
Compared to the top performer*
Read speed
36 %
Write speed
23 %

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

AS SSD Benchmark

Standard performance test

The standard test was performed using a 1 GB file. A total score of 49 points was achieved.

AS SSD TEST: Transcend JetFlash 790 64GB

AS SSD Read: Write:
Seq
in megabytes per second
128,46 MB/s
38,85 MB/s
4K
in megabytes per second
8,93 MB/s
0,38 MB/s
4K-64Thrd
in megabytes per second
7,72 MB/s
0,37 MB/s
Access time
in milliseconds
1,003 ms
10,101 ms
Score
29
5
Total score
49

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 10, 2020 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: Transcend JetFlash 790 64GB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
31,29 MB/s
34,34 s
Program
many small files
8,50 MB/s
165,46 s
Game
small and large files
26,00 MB/s
53,12 s

Compression Performance Test

This measures the write and read speed of the Transcend USB flash drive, depending on the compressibility of the data (according to the manufacturer, these should be 90 MB/s and 30 MB/s respectively).

AS SSD TEST: Transcend JetFlash 790 64GB

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 790 64GB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
150,16
47,16
SEQ1M
Q1T1
150,37
45,04
RND4K
Q32T16
16,79
2,86
RND4K
Q1T1
11,76
0,01

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
143,20
45,00
SEQ1M
Q1T1
143,40
43,00
RND4K
Q32T16
4.099,40
699,00
RND4K
Q1T1
2.870,40
1,70

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
55.513,30
176.170,00
SEQ1M
Q1T1
6.970,37
22.398,20
RND4K
Q32T16
87.314,20
305.602,00
RND4K
Q1T1
348,16
489.297,00

HD Tune Pro Benchmark

HD Tune writes a 1 GB file to the 64 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 790 64GB

ATTO Disk Benchmark

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

ATTO Disk Benchmark TEST: Transcend JetFlash 790 64GB


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