TEST: Corsair EX100U 1TB

Here you can find a detailed performance and benchmark test of the external SSD EX100U with 1TB (CSSD-EX100U1TB) from Corsair.
Score
1220
Price/GB
0,10 €


Technical data
Image EX100U
Manufacturer Corsair
Model number CSSD-EX100U1TB
Storage capacity 1024 GB (932 GiB)
pSLC-Cache 24 GB approx.
Read speed 1600 MB/s
Write speed 1500 MB/s
Interface USB 3.2 Gen 2x2 (20 Gbit/s)
Connection USB Typ C
Price ca. 100 USD (= 0,10 $ / GB)
Paid link Buy on Amazon
Compare Product
Compared to the top performer*
Read speed
72 %
Write speed
74 %

*) 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 5 GB file. A total score of 1220 points was achieved.

AS SSD TEST: Corsair EX100U 1TB

AS SSD Read: Write:
Seq
in megabytes per second
1384,57 MB/s
1419,18 MB/s
4K
in megabytes per second
25,10 MB/s
92,77 MB/s
4K-64Thrd
in megabytes per second
232,54 MB/s
376,78 MB/s
Access time
in milliseconds
0,068 ms
0,200 ms
Score
396
611
Total score
1220

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 April 27, 2023 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: Corsair EX100U 1TB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
885,42 MB/s
2,60 s
Program
many small files
164,65 MB/s
42,75 s
Game
small and large files
580,22 MB/s
11,91 s

Compression Performance Test

Here, the writing and reading speed of the SSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 1600MB/s and 1500MB/s respectively).

AS SSD TEST: Corsair EX100U 1TB

CrystalDiskMark Benchmark

Here, two sequential and two random performance tests are performed, similar to the ones performed on the AS SSD.

CrystalDiskMark Benchmark TEST: Corsair EX100U 1TB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
1584,08
1527,31
SEQ1M
Q1T1
845,13
1526,68
RND4K
Q32T16
316,98
434,39
RND4K
Q1T1
38,53
99,78

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
1.510,70
1.456,60
SEQ1M
Q1T1
806,00
1.456,00
RND4K
Q32T16
77.387,50
106.053,00
RND4K
Q1T1
9.407,20
24.360,10

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
5.290,88
5.479,72
SEQ1M
Q1T1
1.239,95
686,06
RND4K
Q32T16
6.607,09
4.823,45
RND4K
Q1T1
106,17
40,94

HD Tune Pro Endurance test

A long-term test was performed here 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 100 GB was written to the medium. After approx. 24 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 861 MB/s and written with 593 MB/s.

HD Tune Endurance Test TEST: Corsair EX100U 1TB

HD Tune Pro Benchmark

HD Tune writes a 5 GB file to the Corsair 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.

HD Tune TEST: Corsair EX100U 1TB

ATTO Disk Benchmark

Here, a 256 MB file is written several times to the Corsair 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.

ATTO Disk Benchmark TEST: Corsair EX100U 1TB

SSD-Z Benchmark

Similar to HD Tune, a 500 MB file is written to the Corsair external SSD here. is written. The transfer data is displayed. The more constant the line, the better.

SSD-Z TEST: Corsair EX100U 1TB


Information about the test system can be found at the bottom of the home page.
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