TEST: Samsung 990 PRO 1TB M.2 SSD

Technical data
Image
Manufacturer	Samsung
Model number	MZ-V9P1T0BW
Storage capacity	1024 GB (932 GiB)
pSLC-Cache	115 GB approx.
Read speed	7450 MB/s
Write speed	6900 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	Samsung Pascal (S4LV008)
Price	ca. 110 USD (= 0,11 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

100 %

Write speed

100 %

*) 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 8521 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	5943,98 MB/s	5599,14 MB/s
4K in megabytes per second	70,56 MB/s	175,75 MB/s
4K-64Thrd in megabytes per second	2660,64 MB/s	2778,68 MB/s
Access time in milliseconds	0,020 ms	0,110 ms
Score	3326	3514
Total score	8521

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 December 05, 2022 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	1879,63 MB/s	1,22 s
Program many small files	1233,84 MB/s	5,70 s
Game small and large files	1819,73 MB/s	3,80 s

Compression Performance Test

This measures the write and read speed of the the Samsung SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 7450MB/s and 6900MB/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	7456,83	6855,83
SEQ1M Q1T1	3354,94	5619,88
RND4K Q32T16	3628,46	2742,60
RND4K Q1T1	74,82	180,84

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. 115 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 5960 MB/s and written with 2436 MB/s.

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the Samsung 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 Samsung 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 Samsung 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 December 05, 2022.
Information about the test system can be found at the bottom of the home page.
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