Technical data | |
Image | ![]() |
Manufacturer | Silicon Power |
Model number | SP256GBSS3A55S25 |
Storage capacity | 256 GB (238 GiB) |
pSLC-Cache | 58 GB approx. |
Read speed | 460 MB/s |
Write speed | 450 MB/s |
Interface | SATA 6 Gbps |
Connection | 2.5" |
Memory module (NAND) | TLC |
TBW (Total Bytes Written) | 125 Terabyte |
Controller | Phison PS3111-S11 |
Price | ca. 21 AUD (= 0,08 $ / GB) |
Paid link | Buy on Amazon |
The standard test was performed with a 1 GB file. A total score of 525 points was achieved.
AS SSD | Read: | Write: |
---|---|---|
Seq in megabytes per second |
521,13 MB/s |
389,72 MB/s |
4K in megabytes per second |
25,67 MB/s |
88,39 MB/s |
4K-64Thrd in megabytes per second |
70,49 MB/s |
168,97 MB/s |
Access time in milliseconds |
0,040 ms |
0,173 ms |
Score | 148 |
296 |
Total score | 525 |
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 June 17, 2023 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.
Here, the writing and reading speed of the the Silicon Power SATA SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 460MB/s and 450MB/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 |
550,81 |
407,35 |
SEQ1M Q1T1 |
538,65 |
409,66 |
RND4K Q32T16 |
136,67 |
181,19 |
RND4K Q1T1 |
41,26 |
93,48 |
CDM | Read [IOPS] | Write [IOPS] |
---|---|---|
SEQ1M Q8T1 |
525,30 |
388,50 |
SEQ1M Q1T1 |
513,70 |
390,70 |
RND4K Q32T16 |
33.367,70 |
44.236,30 |
RND4K Q1T1 |
10.073,70 |
22.823,20 |
CDM | Read [µs] | Write [µs] |
---|---|---|
SEQ1M Q8T1 |
15.202,00 |
20.496,40 |
SEQ1M Q1T1 |
1.945,85 |
2.558,50 |
RND4K Q32T16 |
15.304,30 |
11.555,30 |
RND4K Q1T1 |
99,01 |
43,68 |