TEST: PNY CS900 1TB SATA SSD

Technical data
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Manufacturer	PNY
Model number	SSD7CS900-1TB-RB
Storage capacity	1024 GB (932 GiB)
pSLC-Cache	16 GB approx.
Read speed	535 MB/s
Write speed	515 MB/s
Interface	SATA 6 Gbps
Connection	2.5"
Memory module (NAND)	TLC
TBW (Total Bytes Written)	450 Terabyte
Controller	Phison PS3111-S11
Price	ca. 62 AUD (= 0,06 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

87 %

Write speed

99 %

*) 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 1 GB file. A total score of 736 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	453,69 MB/s	333,46 MB/s
4K in megabytes per second	45,23 MB/s	84,20 MB/s
4K-64Thrd in megabytes per second	188,16 MB/s	183,31 MB/s
Access time in milliseconds	0,042 ms	0,120 ms
Score	279	301
Total score	736

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 13, 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	870,29 MB/s	1,23 s
Program many small files	1173,39 MB/s	1,20 s
Game small and large files	1077,32 MB/s	1,28 s

Compression Performance Test

Here, the writing and reading speed of the the PNY SATA SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 535MB/s and 515MB/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	477,17	480,03
SEQ1M Q1T1	500,21	468,53
RND4K Q32T16	179,38	195,79
RND4K Q1T1	39,31	88,80