TEST: SanDisk Extreme PRO Portable SSD V2 2TB external SSD

Technical data
Image
Manufacturer	SanDisk
Model number	SDSSDE81-2T00-G25
Storage capacity	2048 GB (1863 GiB)
pSLC-Cache	26 GB approx.
Read speed	2000 MB/s
Write speed	2000 MB/s
Interface	USB 3.2 Gen 2x2 (20 Gbit/s)
Connection	USB Typ C
Price	ca. 220 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.

AS SSD Benchmark

Standard performance test

The standard test was performed using a 5 GB file. A total score of 1787 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	1839,82 MB/s	1929,67 MB/s
4K in megabytes per second	35,05 MB/s	73,00 MB/s
4K-64Thrd in megabytes per second	494,52 MB/s	428,72 MB/s
Access time in milliseconds	0,049 ms	0,247 ms
Score	714	695
Total score	1787

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 June 20, 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	916,55 MB/s	2,51 s
Program many small files	157,00 MB/s	44,83 s
Game small and large files	574,70 MB/s	12,02 s

Compression Performance Test

This measures the write and read speed of the SSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 2000MB/s and 2000MB/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	2076,22	2083,17
SEQ1M Q1T1	1155,66	1798,55
RND4K Q32T16	529,56	486,06
RND4K Q1T1	33,57	79,30

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 300 GB was written to the medium. After approx. 26 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 1548 MB/s and written with 1541 MB/s.

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the SanDisk external 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 SanDisk external 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 SanDisk external SSD here. is written. The transfer data is displayed. The more constant the line, the better.

The benchmark test was performed on June 20, 2023.
Information about the test system can be found at the bottom of the home page.
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