Kingston A400 480GB SATA SSD

Here you will find a detailed speed, performance and benchmark test review. Tested was the SATA SSD A400 with 480GB (SA400S37/480G) from the brand Kingston.

Performance score 
688
Price/GB
0.23 $
Read
500 MB/s
 Write
450 MB/s
Connector
2.5"
Interface
SATA 6 Gbps
Technical specifications (manufacturer information)
Product image Product image A400
Manufacturer Kingston  
Model number SA400S37/480G
Capacity 480 GB (447 GiB)
Read speed 500 MB/s
Write speed 450 MB/s
Interface SATA 6 Gbps
Connector 2.5"
Memory module (NAND) QLC
TBW (Total Bytes Written) 160 terabyte
Warranty 5 Years
Controller Phison PS3111-S11

Product
Score
Price
  Current price
~ 109 $
(= 0.23 $ / GB)
Compare product Compared to the test winner*
Read speed
100 %
Write speed
97 %
*) Test result rated by AS SSD score within the same capacity.

We put the Kingston SATA SSD through a detailed test. You can find the test result / test report here:


AS SSD Benchmark

Standard performance test

The standard test was performed with a 1 GB file. A total score of 688 points was achieved.

AS SSD Benchmark Screenshot: TEST: Kingston A400 480GB SATA SSD
AS SSD Read: Write:
Seq
in megabytes per second
520.02 MB/s
450.52 MB/s
4K
in megabytes per second
23.46 MB/s
82.06 MB/s
4K-64Thrd
in megabytes per second
178.72 MB/s
171.83 MB/s
Access time
in milliseconds
0.040 ms
0.142 ms
Score
254
299
Total score 
688

Copy performance test

A common everyday scenario 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 (cache remains enabled). The real-world test from 29 March 2021 shows performance during simultaneous write and read operations. The lower the duration, the better.

AS SSD TEST: Kingston A400 480GB SATA SSD
AS SSD Copy Benchmark Transfer rate: Duration:
ISO
two large files
947.71 MB/s
1.13 s
Program
typical program folder with many small files
726.47 MB/s
1.94 s
Game
a game folder with small and large files
1,541.46 MB/s
0.90 s

Compression performance test

Here, speed is measured depending on how compressible the data is.

AS SSD TEST: Kingston A400 480GB SATA SSD

CrystalDiskMark Benchmark

Similar to AS SSD, two sequential and two random performance tests are carried out here and the write and read speed (manufacturer specs: 500 MB/s and 450 MB/s) the Kingston SATA SSD is measured.

CrystalDiskMark Benchmark Screenshot: TEST: Kingston A400 480GB SATA SSD
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
549.69
473.44
SEQ1M
Q1T1
539.29
467.37
RND4K
Q32T16
211.61
182.01
RND4K
Q1T1
32.99
91.80

IOPS (Input/Output operations per second)

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
524.20
451.50
SEQ1M
Q1T1
514.30
445.70
RND4K
Q32T16
51,662.40
44,436.30
RND4K
Q1T1
8,054.00
22,411.10

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
15,218.50
17,657.70
SEQ1M
Q1T1
1,943.84
2,242.16
RND4K
Q32T16
9,895.93
11,507.10
RND4K
Q1T1
123.98
44.47

ATTO Disk Benchmark

Here, a 256 MB file is written to the Kingston SATA SSD multiple times. The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster writing and reading usually becomes.

ATTO Disk Benchmark TEST: Kingston A400 480GB SATA SSD

SSD-Z Benchmark

Similar to HD Tune, a 500 MB file is written to the Kingston SATA SSD here. The transfer data is displayed. The more consistent the line, the better. Unfortunately, the tool no longer works correctly from around 4,000 MB/s and no line is displayed (and sometimes incorrect min/max data is shown).

SSD-Z TEST: Kingston A400 480GB SATA SSD


You can find information about the test system at the bottom of the homepage.
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