TEST
YOUR USB

(ExtHD)

ST31000528AS 1TB

▲ 500 ▼

Release date ≈ Q2 2016.

Average Bench: 32.1% (75th of 639)

Based on 35 user benchmarks.  Device: VID 2537 PID 1066 Model: ST31000528AS
Poor: 14%Average: 32.1% Great: 46%

Poor average bench

The ST31000528AS 1TB averaged 67.8% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. 4K Random Write Speed 1.36MB/s
Avg. Sequential Write Speed 76.4MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the ST31000528AS 1TB is 31.2%. This is a relatively narrow range which indicates that the ST31000528AS 1TB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.75MB/s
Avg. Sequential Read Speed 75.8MB/s
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Average Bench

(Based on 35 samples)
Rank 7532.1%
Min Avg Max
9 Read 75.8 119
6.7 Write 76.4 120
7.2 Mixed 54.7 103
8.9 SusWrite 75 121
95.5% 70.5 MB/s
Min Avg Max
0.1 4K Read 0.75 0.9
0.2 4K Write 1.36 1.8
0.1 4K Mixed 0.73 1.1
73.7% 0.94 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
247GB free, PID 1066
Operating at USB 3.0 Speed
SusWrite @10s intervals: 104 103 102 104 102 104 MB/s
38% Below average
Read 76.2
Write 79.2
Mixed 57.6
SusWrite 103
109% 79 MB/s
4K Read 0.8
4K Write 1.4
4K Mixed 0.9
81% 1.03 MB/s
382GB free, PID 1066
Operating at USB 3.0 Speed
SusWrite @10s intervals: 104 59 0 43 104 105 MB/s
35.1% Below average
Read 105
Write 98.5
Mixed 73
SusWrite 69.3
114% 86.4 MB/s
4K Read 0.7
4K Write 1.5
4K Mixed 0.9
84% 1.03 MB/s
386GB free, PID 1066
Operating at USB 2.1 Speed
SusWrite @10s intervals: 43 43 43 43 43 43 MB/s
19.7% Very poor
Read 40.5
Write 40.8
Mixed 32.5
SusWrite 42.9
53% 39.2 MB/s
4K Read 0.8
4K Write 1.4
4K Mixed 0.9
81% 1.03 MB/s
216GB free, PID 1066
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 40 40 39 39 39 MB/s
18.9% Very poor
Read 38.2
Write 35.8
Mixed 29.5
SusWrite 39.2
48% 35.7 MB/s
4K Read 0.8
4K Write 1.5
4K Mixed 0.9
85% 1.07 MB/s
827GB free, PID 1066
Operating at USB 2.1 Speed
SusWrite @10s intervals: 28 26 26 26 26 26 MB/s
14.5% Very poor
Read 33.1
Write 21.1
Mixed 21.6
SusWrite 26.6
33% 25.6 MB/s
4K Read 0.8
4K Write 1.2
4K Mixed 0.9
74% 0.97 MB/s
897GB free, PID 1066
Operating at USB 2.1 Speed
SusWrite @10s intervals: 8.7 8.9 9.1 9 9.1 8.8 MB/s
3.88% Terrible
Read 9
Write 6.7
Mixed 7.2
SusWrite 8.9
11% 7.95 MB/s
4K Read 0.1
4K Write 0.2
4K Mixed 0.1
11% 0.13 MB/s
35 MORE »
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  • Best user rated - User sentiment trumps benchmarks for this comparison.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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