TEST: Samsung 870 QVO 2TB SATA SSD

Technical data
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Manufacturer	Samsung
Model number	MZ-77Q2T0BW
Storage capacity	2048 GB (1863 GiB)
Read speed	560 MB/s
Write speed	530 MB/s
Interface	SATA 6 Gbps
Connection	2.5"
Memory module (NAND)	QLC
TBW (Total Bytes Written)	720 Terabyte
Controller	Samsung MKX (Metis S4LR059)
Price	ca. 156 AUD (= 0,08 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

99 %

Write speed

91 %

*) 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 792 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	516,23 MB/s	455,31 MB/s
4K in megabytes per second	38,02 MB/s	90,52 MB/s
4K-64Thrd in megabytes per second	215,27 MB/s	182,45 MB/s
Access time in milliseconds	0,040 ms	0,036 ms
Score	305	319
Total score	792

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 19, 2021 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	892,94 MB/s	1,20 s
Program many small files	1192,67 MB/s	1,18 s
Game small and large files	1899,65 MB/s	0,73 s

Compression Performance Test

Here, the writing and reading speed of the the Samsung SATA SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 560MB/s and 530MB/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	548,52	481,23
SEQ1M Q1T1	534,11	470,95
RND4K Q32T16	226,85	192,45
RND4K Q1T1	38,63	98,60