TEST: ADATA XPG Gammix S50 Core 500GB M.2 SSD

Technical data
Image
Manufacturer	ADATA
Model number	SGAMMIXS50C-500G-CS
Storage capacity	500 GB (466 GiB)
pSLC-Cache	182 GB approx.
Read speed	3500 MB/s
Write speed	2200 MB/s
Interface	PCIe 4.0 x4
Connection	M.2 2280
DRAM Cache	no
TBW (Total Bytes Written)	300 Terabyte
Controller	Realtek RTS5770DL
Price	ca. 0 AUD (= 0,11 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

57 %

Write speed

73 %

*) 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 5 GB file. A total score of 5077 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	3798,88 MB/s	3806,27 MB/s
4K in megabytes per second	64,18 MB/s	154,53 MB/s
4K-64Thrd in megabytes per second	1445,83 MB/s	1674,46 MB/s
Access time in milliseconds	0,024 ms	0,130 ms
Score	1890	2210
Total score	5077

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 July 21, 2025 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	2017,05 MB/s	1,14 s
Program many small files	1114,73 MB/s	6,31 s
Game small and large files	1910,42 MB/s	3,62 s

Compression Performance Test

Here, the writing and reading speed of the the ADATA SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 3500MB/s and 2200MB/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	4276,30	4188,19
SEQ1M Q1T1	3146,63	4173,48
RND4K Q32T16	1818,38	1986,46
RND4K Q1T1	69,13	167,47

HD Tune Pro Endurance test

A long-term test was performed here 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 200 GB was written to the medium. After approx. 182 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 3120 MB/s and written with 1904 MB/s.

ATTO Disk Benchmark

Here, a 256 MB file is written several times to the ADATA 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 ADATA M.2 SSD here. is written. The transfer data is displayed. The more constant the line, the better.

The benchmark test was performed on July 21, 2025.
Information about the test system can be found at the bottom of the home page.
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