Technical data | |
Image | |
Manufacturer | SanDisk |
Model number | SDCZ550-256G-G46 |
Storage capacity | 256 GB (233 GiB) |
Read speed | 100 MB/s |
Write speed | 50 MB/s |
Connection | USB Typ A |
Price | ca. 23 AUD (= 0,09 $ / GB) |
Paid link | Buy on Amazon |
The standard test was performed with a 1 GB file. A total score of 28 points was achieved.
AS SSD | Read: | Write: |
---|---|---|
Seq in megabytes per second |
77,59 MB/s |
60,08 MB/s |
4K in megabytes per second |
2,97 MB/s |
0,50 MB/s |
4K-64Thrd in megabytes per second |
2,71 MB/s |
0,51 MB/s |
Access time in milliseconds |
0,888 ms |
23,006 ms |
Score | 13 |
7 |
Total score | 28 |
A common everyday situation is simulated here. Three test folders are created:
The three folders are copied using the Windows Copy command (the cache remains enabled). The practical test of August 02, 2024 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.
AS SSD Copy-Benchmark | Transfer rate: | Duration: |
---|---|---|
ISO two large files |
49,79 MB/s |
21,57 s |
Program many small files |
8,17 MB/s |
172,23 s |
Game small and large files |
17,30 MB/s |
79,84 s |
Here, the writing and reading speed of the the SanDisk USB flash driveSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 100MB/s and 50MB/s respectively).
Here, two sequential and two random performance tests are performed, similar to the ones performed on the AS SSD.
CDM | Read [MB/s] | Write [MB/s] |
---|---|---|
SEQ1M Q8T1 |
105,18 |
61,12 |
SEQ1M Q1T1 |
105,21 |
59,06 |
RND4K Q32T16 |
5,65 |
1,61 |
RND4K Q1T1 |
5,61 |
1,50 |
CDM | Read [IOPS] | Write [IOPS] |
---|---|---|
SEQ1M Q8T1 |
100,30 |
58,30 |
SEQ1M Q1T1 |
100,30 |
56,30 |
RND4K Q32T16 |
1.380,10 |
394,00 |
RND4K Q1T1 |
1.369,90 |
366,70 |
CDM | Read [µs] | Write [µs] |
---|---|---|
SEQ1M Q8T1 |
78.932,50 |
135.373,00 |
SEQ1M Q1T1 |
9.951,15 |
17.726,40 |
RND4K Q32T16 |
158.552,00 |
284.460,00 |
RND4K Q1T1 |
729,71 |
2.724,33 |