TEST: SK hynix Gold P31 2TB M.2 SSD

Technical data
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Manufacturer	SK hynix
Model number	SHGP31-2000GM-2
Storage capacity	2048 GB (1863 GiB)
pSLC-Cache	172 GB approx.
Read speed	3500 MB/s
Write speed	3200 MB/s
Interface	PCIe 4.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	✓ yes
TBW (Total Bytes Written)	1200 Terabyte
Controller	Hynix ACNT038
Price	ca. 134 AUD (= 0,07 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

48 %

Write speed

47 %

*) 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 6564 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	2997,00 MB/s	3127,85 MB/s
4K in megabytes per second	60,34 MB/s	177,91 MB/s
4K-64Thrd in megabytes per second	1839,54 MB/s	2737,07 MB/s
Access time in milliseconds	0,019 ms	0,106 ms
Score	2200	3228
Total score	6564

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 November 07, 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	2118,90 MB/s	1,08 s
Program many small files	1229,93 MB/s	5,72 s
Game small and large files	2064,33 MB/s	3,35 s

Compression Performance Test

Here, the writing and reading speed of the the SK hynix SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 3500MB/s and 3200MB/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	3601,63	3354,97
SEQ1M Q1T1	1862,24	3178,06
RND4K Q32T16	1964,01	3237,37
RND4K Q1T1	54,24	194,68