fanxiang S500 Pro 256GB M.2 SSD

Here you will find a detailed speed, performance and benchmark test review. Tested was the M.2 NVMe SSD S500 Pro with 256GB (S500PRO256G) from the brand fanxiang.

Performance score 
2136
Price/GB
0.23 $
Read
2,800 MB/s
 Write
2,000 MB/s
Connector
M.2 2280
Interface
PCIe 3.0 x4
Technical specifications (manufacturer information)
Product image Product image S500 Pro
Manufacturer fanxiang  
Model number S500PRO256G
Capacity 256 GB (238 GiB)
pSLC cache 40 GB approx.
Read speed 2800 MB/s
Write speed 2000 MB/s
Interface PCIe 3.0 x4
Connector M.2 2280
Memory module (NAND) TLC
DRAM cache No
TBW (Total Bytes Written) 160 terabyte
Warranty 5 Years
Controller Maxio MAP1202

Product
Score
Price
  Current price
~ 60 $
(= 0.23 $ / GB)
Compare product Compared to the test winner*
Read speed
100 %
Write speed
50 %
*) Test result rated by AS SSD score within the same capacity.

We put the fanxiang NVMe M.2 SSD through a detailed test. You can find the test result / test report here:


AS SSD Benchmark

Standard performance test

The standard test was performed with a 5 GB file. A total score of 2136 points was achieved.

AS SSD Benchmark Screenshot: TEST: fanxiang S500 Pro 256GB M.2 SSD
AS SSD Read: Write:
Seq
in megabytes per second
3,191.27 MB/s
1,271.07 MB/s
4K
in megabytes per second
58.51 MB/s
147.74 MB/s
4K-64Thrd
in megabytes per second
459.03 MB/s
672.58 MB/s
Access time
in milliseconds
0.024 ms
0.533 ms
Score
837
947
Total score 
2136

Copy performance test

A common everyday scenario 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 (cache remains enabled). The real-world test from 10 January 2023 shows performance during simultaneous write and read operations. The lower the duration, the better.

AS SSD TEST: fanxiang S500 Pro 256GB M.2 SSD
AS SSD Copy Benchmark Transfer rate: Duration:
ISO
two large files
1,642.84 MB/s
1.40 s
Program
typical program folder with many small files
1,112.41 MB/s
6.33 s
Game
a game folder with small and large files
1,195.92 MB/s
5.78 s

Compression performance test

Here, speed is measured depending on how compressible the data is.

AS SSD TEST: fanxiang S500 Pro 256GB M.2 SSD

CrystalDiskMark Benchmark

Similar to AS SSD, two sequential and two random performance tests are carried out here and the write and read speed (manufacturer specs: 2800 MB/s and 2000 MB/s) the fanxiang SSD is measured.

CrystalDiskMark Benchmark Screenshot: TEST: fanxiang S500 Pro 256GB M.2 SSD
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
3,634.68
1,353.19
SEQ1M
Q1T1
2,865.75
1,356.88
RND4K
Q32T16
487.51
883.36
RND4K
Q1T1
65.50
170.14

IOPS (Input/Output operations per second)

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
3,466.30
1,290.50
SEQ1M
Q1T1
2,733.00
1,294.00
RND4K
Q32T16
119,022.00
215,665.00
RND4K
Q1T1
15,991.90
41,537.80

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
2,305.89
6,184.93
SEQ1M
Q1T1
365.68
772.33
RND4K
Q32T16
4,290.97
2,369.54
RND4K
Q1T1
62.33
23.94

HD Tune Pro long-term test

A long-term test was performed to fully utilize the storage. You can see at what point the cache (if present) becomes full and write performance drops. A test file of 100 GB was written to the medium. After approx. 40 GB, the cache was full and performance was throttled.
The test file could at least be read with an average read speed of 1,437 MB/s and written at 497 MB/s.

HD Tune endurance test TEST: fanxiang S500 Pro 256GB M.2 SSD

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the fanxiang NVMe M.2 SSD. The transfer data of the read speed is displayed graphically. The minimum, maximum and average values are also determined. The measured access time and burst rate are also shown.

HD Tune TEST: fanxiang S500 Pro 256GB M.2 SSD

ATTO Disk Benchmark

Here, a 256 MB file is written to the fanxiang NVMe M.2 SSD multiple times. The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster writing and reading usually becomes.

ATTO Disk Benchmark TEST: fanxiang S500 Pro 256GB M.2 SSD

SSD-Z Benchmark

Similar to HD Tune, a 500 MB file is written to the fanxiang NVMe M.2 SSD here. The transfer data is displayed. The more consistent the line, the better. Unfortunately, the tool no longer works correctly from around 4,000 MB/s and no line is displayed (and sometimes incorrect min/max data is shown).

SSD-Z TEST: fanxiang S500 Pro 256GB M.2 SSD


You can find information about the test system at the bottom of the homepage.
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