TEST: SK hynix Platinum P41 1TB M.2 SSD

Technical data
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Manufacturer	SK hynix
Model number	SHPP41-1000GM-2
Storage capacity	1024 GB (932 GiB)
pSLC-Cache	184 GB approx.
Read speed	7000 MB/s
Write speed	6500 MB/s
Interface	PCIe 4.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	✓ yes
TBW (Total Bytes Written)	600 Terabyte
Controller	SK Hynix Aries
Price	ca. 88 USD (= 0,09 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

99 %

Write speed

97 %

*) Test result evaluated according to AS SSD Score within the same size.

This SSD is PS5 compatible. It can be used as expansion storage in a PlayStation 5 console.

AS SSD Benchmark

Standard performance test

The standard test was performed using a 5 GB file. A total score of 9177 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	6095,53 MB/s	5680,20 MB/s
4K in megabytes per second	74,58 MB/s	201,39 MB/s
4K-64Thrd in megabytes per second	2829,85 MB/s	3120,51 MB/s
Access time in milliseconds	0,018 ms	0,094 ms
Score	3514	3890
Total score	9177

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	2085,63 MB/s	1,10 s
Program many small files	1169,81 MB/s	6,02 s
Game small and large files	1950,52 MB/s	3,54 s

Compression Performance Test

This measures the write and read speed of the the SK hynix SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 7000MB/s and 6500MB/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	7395,89	6667,19
SEQ1M Q1T1	5734,72	5141,87
RND4K Q32T16	3598,09	3088,10
RND4K Q1T1	72,72	224,37

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 200 GB was written to the medium. After approx. 184 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 5833 MB/s and written with 4682 MB/s.

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the SK hynix 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 SK hynix 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 SK hynix M.2 SSD here. The transfer data is displayed. The more constant the line, the better. Unfortunately the tool does not work correctly above about 5,000 MB/s and no line (and sometimes wrong min and max data) is displayed.

The benchmark test was performed on July 13, 2023.
Information about the test system can be found at the bottom of the home page.
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