TEST: ADATA S102 Pro 256GB USB flash driveS102 Pro

Here you can find a detailed performance and benchmark test.
The the USB flash drive S102 Pro with 256GB (AS102P-256G-RGY) from ADATA was tested.


Technical data
Manufacturer ADATA
Type AS102P-256G-RGY
Storage capacity 256 GB (231 GiB)
Read speed 200 MB/s
Write speed 120 MB/s
Price 76 USD (= 0,30 $ / GB)
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Score
111
Price/GB
0,30 $
Compared to the top performer*
Read speed
26 %
Write speed
10 %

*) 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 111 points was achieved.

AS SSD TEST: ADATA S102 Pro 256GB

AS SSD Read: Write:
Seq
in megabytes per second
257,87 MB/s
90,04 MB/s
4K
in megabytes per second
12,96 MB/s
13,14 MB/s
4K-64Thrd
in megabytes per second
12,10 MB/s
14,67 MB/s
Access time
in milliseconds
0,145 ms
0,713 ms
Score
51
37
Total score
111

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 12.08.2021 shows the performance for simultaneous write and read operations. The lower the duration, the better.

AS SSD TEST: ADATA S102 Pro 256GB
AS SSD Kopier-Benchmark Transferrate: Dauer:
ISO
two large files
93,69 MB/s
11,46 s
Program
many small files
34,23 MB/s
41,10 s
Game
small and large files
70,95 MB/s
19,47 s

Compression Performance Test

Here, the write as well as read speed (according to the manufacturer 200 MB/s and 120 MB/s) the ADATA USB flash drive is measured depending on the compressibility of the data.

AS SSD TEST: ADATA S102 Pro 256GB

CrystalDiskMark 7.0 Benchmark


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

CrystalDiskMark Benchmark TEST: ADATA S102 Pro 256GB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
270,67
67,71
SEQ1M
Q1T1
265,90
16,35
RND4K
Q32T16
16,47
15,13
RND4K
Q1T1
14,78
15,18

Input/Output operations per second

CDM Read [IPOS] Write [IPOS]
SEQ1M
Q8T1
258,10
64,60
SEQ1M
Q1T1
253,60
15,60
RND4K
Q32T16
4.021,70
3.694,30
RND4K
Q1T1
3.609,10
3.705,30

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
30.863,30
66.485,90
SEQ1M
Q1T1
3.942,57
4.165,43
RND4K
Q32T16
95.266,80
94.934,90
RND4K
Q1T1
276,92
269,50

ATTO Disk Benchmark 4

Here a 256 MB file is written several times to the 256 GB ADATA 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: ADATA S102 Pro 256GB

HD Tune Pro 5.75 Benchmark

HD Tune writes a 1 GB file to the 256 GB ADATA 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: ADATA S102 Pro 256GB

HD Tune Endurance test

A long-term test was performed here to fully utilize the memory. You can see when a cache is full and the write performance decreases.

HD Tune Dauertest TEST: ADATA S102 Pro 256GB

SSD-Z 16 Benchmark

Similar to HD Tune, a 500 MB file is written to the 256 GB ADATA USB flash drive here. is written. The transfer data is displayed. The more constant the line, the better.

SSD-Z TEST: ADATA S102 Pro 256GB

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