TEST: HP x911w 256GB USB flash drive

Here you can find a detailed performance and benchmark test of the USB flash drive x911w with 256GB (HPFD911W-256) from HP.
Score
186
Price/GB
0,25 €


Technical data
Image x911w
Manufacturer HP
Model number HPFD911W-256
Storage capacity 256 GB (238 GiB)
Read speed 410 MB/s
Write speed 300 MB/s
Connection USB Typ A
Price ca. 64 USD (= 0,25 $ / GB)
Paid link Buy on Amazon
Compare Product
Compared to the top performer*
Read speed
40 %
Write speed
26 %

*) 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 186 points was achieved.

AS SSD TEST: HP x911w 256GB

AS SSD Read: Write:
Seq
in megabytes per second
415,92 MB/s
222,73 MB/s
4K
in megabytes per second
20,08 MB/s
37,32 MB/s
4K-64Thrd
in megabytes per second
12,72 MB/s
14,79 MB/s
Access time
in milliseconds
0,401 ms
0,244 ms
Score
74
74
Total score
186

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 September 10, 2023 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD TEST: HP x911w 256GB
AS SSD Copy-Benchmark Transfer rate: Duration:
ISO
two large files
115,44 MB/s
9,30 s
Program
many small files
41,57 MB/s
33,85 s
Game
small and large files
72,82 MB/s
18,97 s

Compression Performance Test

This measures the write and read speed of the HP USB flash drive, depending on the compressibility of the data (according to the manufacturer, these should be 410 MB/s and 300 MB/s respectively).

AS SSD TEST: HP x911w 256GB

CrystalDiskMark Benchmark

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

CrystalDiskMark Benchmark TEST: HP x911w 256GB
CDM Read [MB/s] Write [MB/s]
SEQ1M
Q8T1
441,37
269,33
SEQ1M
Q1T1
423,56
259,67
RND4K
Q32T16
13,84
19,17
RND4K
Q1T1
27,28
17,52

Input/Output operations per second

CDM Read [IOPS] Write [IOPS]
SEQ1M
Q8T1
420,90
256,80
SEQ1M
Q1T1
403,90
247,60
RND4K
Q32T16
3.377,70
4.679,20
RND4K
Q1T1
6.660,20
4.277,10

Average latency

CDM Read [µs] Write [µs]
SEQ1M
Q8T1
18.959,00
30.968,70
SEQ1M
Q1T1
2.474,87
4.036,01
RND4K
Q32T16
108.418,00
91.802,40
RND4K
Q1T1
150,01
233,62

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 100 GB was written to the medium.

HD Tune Endurance Test TEST: HP x911w 256GB

HD Tune Pro Benchmark

HD Tune writes a 1 GB file to the 256 GB HP 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.

HD Tune TEST: HP x911w 256GB

ATTO Disk Benchmark

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

ATTO Disk Benchmark TEST: HP x911w 256GB

SSD-Z Benchmark

Similar to HD Tune, a 500 MB file is written to the 256 GB HP USB flash drive here. The transfer data is displayed. The more constant the line, the better.

SSD-Z TEST: HP x911w 256GB


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