TEST: Samsung 990 EVO Plus 2TB M.2 SSD

Technical data
Image
Manufacturer	Samsung
Model number	MZ-V9S2T0B
Storage capacity	2048 GB (1863 GiB)
pSLC-Cache	220 GB approx.
Read speed	7250 MB/s
Write speed	6300 MB/s
Interface	PCIe 4.0 x4
Connection	M.2 2280
Memory module (NAND)	TLC
DRAM Cache	no
TBW (Total Bytes Written)	1200 Terabyte
Controller	Samsung Piccolo/​S4LY022
Price	ca. 0 AUD (= 0,06 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

98 %

Write speed

85 %

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

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

AS SSD Benchmark

Standard performance test

The standard test was performed with a 5 GB file. A total score of 8485 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	5921,19 MB/s	5022,95 MB/s
4K in megabytes per second	73,68 MB/s	176,69 MB/s
4K-64Thrd in megabytes per second	2657,14 MB/s	2829,53 MB/s
Access time in milliseconds	0,022 ms	0,111 ms
Score	3323	3509
Total score	8485

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 April 28, 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	2065,87 MB/s	1,11 s
Program many small files	1114,62 MB/s	6,32 s
Game small and large files	1873,08 MB/s	3,69 s

Compression Performance Test

Here, the writing and reading speed of the the Samsung SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 7250MB/s and 6300MB/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	7296,38	6028,43
SEQ1M Q1T1	3926,24	5306,22
RND4K Q32T16	3733,01	2874,71
RND4K Q1T1	78,13	189,32

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 300 GB was written to the medium. After approx. 220 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 2228 MB/s and written with 2899 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. is written. The transfer data is displayed. The more constant the line, the better. Unfortunately the tool does not work correctly from about 5,000 MB/s and no line (and partly wrong min and max data) is displayed.

The benchmark test was performed on April 28, 2025.
Information about the test system can be found at the bottom of the home page.
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