TEST: Corsair Flash Voyager GTX 256GB USB flash drive

Technical data
Image
Manufacturer	Corsair
Model number	CMFVYGTX3C-256GB
Storage capacity	256 GB (238 GiB)
Read speed	470 MB/s
Write speed	440 MB/s
Connection	USB Typ A
Price	ca. 70 USD (= 0,27 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

41 %

Write speed

39 %

*) 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 616 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	409,57 MB/s	376,24 MB/s
4K in megabytes per second	29,26 MB/s	45,69 MB/s
4K-64Thrd in megabytes per second	151,47 MB/s	186,72 MB/s
Access time in milliseconds	0,080 ms	0,147 ms
Score	222	270
Total score	616

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 December 12, 2020 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	295,23 MB/s	3,64 s
Program many small files	204,93 MB/s	6,87 s
Game small and large files	267,90 MB/s	5,15 s

Compression Performance Test

This measures the write and read speed of the Corsair USB flash drive, depending on the compressibility of the data (according to the manufacturer, these should be 470 MB/s and 440 MB/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	450,37	401,98
SEQ1M Q1T1	362,32	388,48
RND4K Q32T16	162,82	168,48
RND4K Q1T1	26,74	50,37

HD Tune Pro Benchmark

HD Tune writes a 1 GB file to the 256 GB Corsair USB flash drive. 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 256 GB Corsair USB flash drive. The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster they were written and read.

The benchmark test was performed on December 12, 2020.
Information about the test system can be found at the bottom of the home page.
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