TEST: Netac US8 256GB USB flash drive

Here you can find a detailed performance and benchmark test of the USB flash drive US8 with 256GB (US8-256GB) from Netac.
Score
409
Price/GB
0,11 €


Technical data
Image US8
Manufacturer Netac
Model number US8-256GB
Storage capacity 256 GB (238 GiB)
pSLC-Cache 30 GB approx.
Read speed 550 MB/s
Write speed 550 MB/s
Connection USB Typ A+C
Price ca. 28 USD (= 0,11 $ / GB)
Paid link Buy on Amazon
Compare Product
Compared to the top performer*
Read speed
52 %
Write speed
38 %

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

AS SSD Benchmark

Standard performance test

The standard test was performed using a 1 GB file. A total score of 409 points was achieved.

AS SSD TEST: Netac US8 256GB

AS SSD Read: Write:
Seq
in megabytes per second
531,58 MB/s
368,72 MB/s
4K
in megabytes per second
28,54 MB/s
10,98 MB/s
4K-64Thrd
in megabytes per second
145,88 MB/s
13,40 MB/s
Access time
in milliseconds
0,053 ms
0,454 ms
Score
228
61
Total score
409

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, 2024 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: Netac US8 256GB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
301,78 MB/s
3,56 s
Program
many small files
106,72 MB/s
13,18 s
Game
small and large files
217,37 MB/s
6,35 s

Compression Performance Test

This measures the write and read speed of the the Netac USB flash driveSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 550MB/s and 550MB/s respectively).

AS SSD TEST: Netac US8 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: Netac US8 256GB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
564,86
391,24
SEQ1M
Q1T1
548,28
383,36
RND4K
Q32T16
303,62
13,13
RND4K
Q1T1
43,24
11,60

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
538,70
373,10
SEQ1M
Q1T1
522,90
365,60
RND4K
Q32T16
74.126,50
3.204,60
RND4K
Q1T1
10.557,60
2.831,30

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
14.823,00
21.357,90
SEQ1M
Q1T1
1.911,86
2.733,26
RND4K
Q32T16
6.896,88
119.142,00
RND4K
Q1T1
94,57
352,99

HD Tune Pro Endurance test

This is a long term test to make full use of the memory capacity. You can see when a cache is full and the writing performance decreases. A test file of 100 GB was written to the medium. After approx. 30 GB, the pSLC-Cache was full and the performance was throttled.
At least the test file could be read with an average write speed of 283 MB/s and written with 140 MB/s.

HD Tune Endurance Test TEST: Netac US8 256GB

HD Tune Pro Benchmark

HD Tune writes a 1 GB file to the 256 GB Netac 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: Netac US8 256GB

ATTO Disk Benchmark

Here, a 256 MB file is written several times to the 256 GB Netac USB flash drive. 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: Netac US8 256GB

SSD-Z Benchmark

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

SSD-Z TEST: Netac US8 256GB


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