TEST: KIOXIA EXCERIA 480GB SATA SSD

Technical data
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Manufacturer	KIOXIA
Model number	LTC10Z480GG8
Storage capacity	480 GB (447 GiB)
pSLC-Cache	9 GB approx.
Read speed	555 MB/s
Write speed	540 MB/s
Interface	SATA 6 Gbps
Connection	2.5"
Memory module (NAND)	TLC
TBW (Total Bytes Written)	120 Terabyte
Controller	Phison PS3111-S11T
Price	ca. 39 USD (= 0,08 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

90 %

Write speed

96 %

*) 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 724 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	471,90 MB/s	399,47 MB/s
4K in megabytes per second	45,18 MB/s	70,68 MB/s
4K-64Thrd in megabytes per second	182,88 MB/s	181,95 MB/s
Access time in milliseconds	0,042 ms	0,130 ms
Score	275	293
Total score	724

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 27, 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	929,34 MB/s	1,16 s
Program many small files	1196,01 MB/s	1,18 s
Game small and large files	1978,42 MB/s	0,70 s

Compression Performance Test

This measures the write and read speed of the the KIOXIA SATA SSDSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 555MB/s and 540MB/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	498,74	468,89
SEQ1M Q1T1	512,65	463,63
RND4K Q32T16	186,22	194,16
RND4K Q1T1	39,16	79,10

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 50 GB was written to the medium. After approx. 9 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 480 MB/s and written with 111 MB/s.

HD Tune Pro Benchmark

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

The benchmark test was performed on November 27, 2023.
Information about the test system can be found at the bottom of the home page.
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