TEST: fanxiang S660 1TB M.2 SSD

Technical data
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Manufacturer	fanxiang
Model number	FX-S660-1TB
Storage capacity	1024 GB (932 GiB)
pSLC-Cache	118 GB approx.
Read speed	4800 MB/s
Write speed	4500 MB/s
Interface	PCIe 4.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	no
TBW (Total Bytes Written)	700 Terabyte
Price	ca. 70 USD (= 0,07 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

67 %

Write speed

63 %

*) 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 5400 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	4357,63 MB/s	3961,83 MB/s
4K in megabytes per second	58,08 MB/s	172,80 MB/s
4K-64Thrd in megabytes per second	1517,48 MB/s	1804,46 MB/s
Access time in milliseconds	0,022 ms	0,411 ms
Score	2011	2373
Total score	5400

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 December 19, 2023 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	2165,99 MB/s	1,06 s
Program many small files	1146,48 MB/s	6,14 s
Game small and large files	1930,82 MB/s	3,58 s

Compression Performance Test

This measures the write and read speed of the the fanxiang SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 4800MB/s and 4500MB/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	5004,21	4290,24
SEQ1M Q1T1	4519,32	4325,43
RND4K Q32T16	2530,21	2227,53
RND4K Q1T1	61,62	180,64

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. 118 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 3836 MB/s and written with 1744 MB/s.

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the fanxiang M.2 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 fanxiang M.2 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 fanxiang M.2 SSD here. The transfer data is displayed. The more constant the line, the better.

The benchmark test was performed on December 19, 2023.
Information about the test system can be found at the bottom of the home page.
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