TEST: Silicon Power Ace A55 256GB SATA SSD

Here you can find a detailed performance and benchmark test of the SATA SSD Ace A55 with 256GB (SP256GBSS3A55S25) from Silicon Power.
Score
525
Price/GB
0,11 €


Technical data
Image Ace A55
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. 28 USD (= 0,11 $ / GB)
Paid link Buy on Amazon
Compare Product
Compared to the top performer*
Read speed
100 %
Write speed
85 %

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

AS SSD Benchmark

Standard performance test

The standard test was performed with a 1 GB file. A total score of 525 points was achieved.

AS SSD TEST: Silicon Power Ace A55 256GB

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

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 June 17, 2023 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: Silicon Power Ace A55 256GB

Compression Performance Test

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).

AS SSD TEST: Silicon Power Ace A55 256GB

CrystalDiskMark Benchmark

Here, two sequential and two random performance tests are performed, similar to the ones performed on the AS SSD.

CrystalDiskMark Benchmark TEST: Silicon Power Ace A55 256GB
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

Input/Output operations per second

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

Average latency

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

HD Tune Pro Benchmark

HD Tune writes a 1 GB file to the Silicon Power SATA SSD. 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: Silicon Power Ace A55 256GB

ATTO Disk Benchmark

Here, a 256 MB file is written several times to the Silicon Power SATA SSD . The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster they can be written and read.

ATTO Disk Benchmark TEST: Silicon Power Ace A55 256GB


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