TEST: SanDisk Ultra 3D 500GB SATA SSD

Technical data
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Manufacturer	SanDisk
Model number	SDSSDH3-500G-G25
Storage capacity	500 GB (466 GiB)
Read speed	560 MB/s
Write speed	530 MB/s
Interface	SATA 6 Gbps
Connection	2.5"
Memory module (NAND)	TLC
TBW (Total Bytes Written)	200 Terabyte
Controller	Marvell 88SS1074
Price	ca. 79 USD (= 0,16 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

65 %

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 1 GB file. A total score of 798 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	502,41 MB/s	461,90 MB/s
4K in megabytes per second	37,42 MB/s	87,69 MB/s
4K-64Thrd in megabytes per second	219,96 MB/s	185,67 MB/s
Access time in milliseconds	0,039 ms	0,114 ms
Score	308	320
Total score	798

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 October 20, 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	965,02 MB/s	1,11 s
Program many small files	1393,26 MB/s	1,01 s
Game small and large files	1831,56 MB/s	0,75 s

Compression Performance Test

This measures the write and read speed of the the SanDisk 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	355,89	488,51
SEQ1M Q1T1	532,68	476,44
RND4K Q32T16	230,40	196,34
RND4K Q1T1	39,49	93,50

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.

HD Tune Pro Benchmark

HD Tune writes a 1 GB file to the SanDisk SATA 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 SATA 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 SATA SSD here. The transfer data is displayed. The more constant the line, the better.

The benchmark test was performed on October 20, 2021.
Information about the test system can be found at the bottom of the home page.
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