TEST: SanDisk Ultra Flair 128GB USB flash driveUltra Flair

Here you can find a detailed performance and benchmark test.
The the USB flash drive Ultra Flair with 128GB (SDCZ73-128G-G46) from SanDisk was tested.


Technical data
Manufacturer SanDisk
Type SDCZ73-128G-G46
Storage capacity 128 GB (0 GiB)
Read speed 150 MB/s
Write speed 60 MB/s
DRAM Cache no
Price 12 USD (= 0,09 $ / GB)
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Score
36
Price/GB
0,09 $
Compared to the top performer*
Read speed
15 %
Write speed
11 %

*) 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 36 points was achieved.

AS SSD TEST: SanDisk Ultra Flair 128GB

AS SSD Read: Write:
Seq
in megabytes per second
153,42 MB/s
69,94 MB/s
4K
in megabytes per second
2,92 MB/s
0,24 MB/s
4K-64Thrd
in megabytes per second
2,50 MB/s
0,30 MB/s
Access time
in milliseconds
4,313 ms
18,447 ms
Score
21
8
Total score
36

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 10.12.2020 shows the performance for simultaneous write and read operations. The lower the duration, the better.

AS SSD TEST: SanDisk Ultra Flair 128GB
AS SSD Kopier-Benchmark Transferrate: Dauer:
ISO
two large files
39,14 MB/s
27,44 s
Program
many small files
11,77 MB/s
119,56 s
Game
small and large files
18,52 MB/s
74,58 s

Compression Performance Test

Here, the write as well as read speed (according to the manufacturer 150 MB/s and 60 MB/s) the SanDisk USB flash drive is measured depending on the compressibility of the data.

AS SSD TEST: SanDisk Ultra Flair 128GB

CrystalDiskMark 7.0 Benchmark


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

CrystalDiskMark Benchmark TEST: SanDisk Ultra Flair 128GB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
161,46
72,64
SEQ1M
Q1T1
161,28
71,20
RND4K
Q32T16
3,72
1,75
RND4K
Q1T1
3,67
1,19

Input/Output operations per second

CDM Read [IPOS] Write [IPOS]
SEQ1M
Q8T1
154,00
69,30
SEQ1M
Q1T1
153,80
67,90
RND4K
Q32T16
908,00
427,20
RND4K
Q1T1
896,20
291,00

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
51.638,40
114.078,00
SEQ1M
Q1T1
6.499,11
14.723,70
RND4K
Q32T16
182.224,00
1.007.080,00
RND4K
Q1T1
1.114,84
3.434,25

ATTO Disk Benchmark 4

Here a 256 MB file is written several times to the 128 GB SanDisk 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: SanDisk Ultra Flair 128GB

HD Tune Pro 5.75 Benchmark

HD Tune writes a 1 GB file to the 128 GB SanDisk 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: SanDisk Ultra Flair 128GB

SSD-Z 16 Benchmark

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

SSD-Z TEST: SanDisk Ultra Flair 128GB

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