TEST: Seagate One Touch SSD 1TB external SSD

Technical data
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Manufacturer	Seagate
Model number	STKG1000401
Storage capacity	1024 GB (931 GiB)
pSLC-Cache	24 GB approx.
Read speed	1030 MB/s
Write speed	1030 MB/s
Interface	USB 3.2 Gen 2x1 (10 Gbit/s)
Connection	USB Typ C
Price	ca. 88 USD (= 0,09 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

51 %

Write speed

49 %

*) 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 5 GB file. A total score of 1026 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	953,63 MB/s	957,21 MB/s
4K in megabytes per second	23,73 MB/s	88,53 MB/s
4K-64Thrd in megabytes per second	219,98 MB/s	321,39 MB/s
Access time in milliseconds	0,069 ms	0,206 ms
Score	339	506
Total score	1026

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 February 08, 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	634,64 MB/s	3,62 s
Program many small files	107,16 MB/s	65,69 s
Game small and large files	285,86 MB/s	24,17 s

Compression Performance Test

This measures the write and read speed of the SSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 1030MB/s and 1030MB/s respectively).

CrystalDiskMark Benchmark

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	1052,13	1028,34
SEQ1M Q1T1	703,94	960,35
RND4K Q32T16	278,73	400,32
RND4K Q1T1	36,42	97,28

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 300 GB was written to the medium. After approx. 24 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 892 MB/s and written with 425 MB/s.

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the Seagate external 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.

ATTO Disk Benchmark

Here, a 256 MB file is written several times to the Seagate external 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.

SSD-Z Benchmark

Similar to HD Tune, a 500 MB file is written to the Seagate external SSD here. is written. The transfer data is displayed. The more constant the line, the better.

The benchmark test was performed on February 08, 2024.
Information about the test system can be found at the bottom of the home page.
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