TEST: Silicon Power Blaze B21 256GB USB flash drive

Here you can find a detailed performance and benchmark test of the USB flash drive Blaze B21 with 256GB (SP256GBUF3B21V1K) from Silicon Power.
Score
0
Price/GB
0,10 €


Technical data
Image Blaze B21
Manufacturer Silicon Power
Model number SP256GBUF3B21V1K
Storage capacity 256 GB (231 GiB)
Read speed not specified
Write speed not specified
Connection USB Typ A
Price ca. 26 AUD (= 0,10 $ / GB)
Paid link Buy on Amazon
Compare Product
Compared to the top performer*
Read speed
9 %
Write speed
1 %

*) 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 0 points was achieved.

AS SSD TEST: Silicon Power Blaze B21 256GB

AS SSD Read: Write:
Seq
in megabytes per second
96,98 MB/s
8,56 MB/s
4K
in megabytes per second
0,00 MB/s
0,00 MB/s
4K-64Thrd
in megabytes per second
0,00 MB/s
0,00 MB/s
Access time
in milliseconds
0,000 ms
0,000 ms
Score
0
0
Total score
0

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 October 14, 2023 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: Silicon Power Blaze B21 256GB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
8,48 MB/s
126,68 s
Program
many small files
3,25 MB/s
432,98 s
Game
small and large files
5,97 MB/s
231,51 s

Compression Performance Test

Here, the writing and reading speed of the the Silicon Power USB flash driveSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 0MB/s and 0MB/s respectively).

AS SSD TEST: Silicon Power Blaze B21 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 Blaze B21 256GB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
96,38
5,85
SEQ1M
Q1T1
101,58
6,91
RND4K
Q32T16
17,94
0,00
RND4K
Q1T1
17,33
0,00

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
91,90
5,60
SEQ1M
Q1T1
96,90
6,60
RND4K
Q32T16
4.380,10
1,00
RND4K
Q1T1
4.230,20
0,70

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
86.171,60
1.292.400,00
SEQ1M
Q1T1
10.308,90
144.737,00
RND4K
Q32T16
85.502,80
2.440.230,00
RND4K
Q1T1
236,22
965.990,00