TEST
YOUR USB

ST500LT0 (ExtHD)

12-9WS142 500GB

▲ 500 ▼

Release date ≈ Q1 2016.

Average Bench: 23% (184th of 639)

Based on 31 user benchmarks.  Device: VID 059f PID 1052 Model: ST500LT0 12-9WS142
Poor: 12%Average: 23% Great: 35%

Very poor average bench

The ST500LT0 12-9WS142 500GB averaged 77.0% 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. Sequential Write Speed 57.8MB/s
Avg. Sustained Write Speed 55MB/s

Good consistency

The range of scores (95th - 5th percentile) for the ST500LT0 12-9WS142 500GB is 23%. This is a relatively narrow range which indicates that the ST500LT0 12-9WS142 500GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.46MB/s
Avg. Sequential Read Speed 60.7MB/s
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Average Bench

(Based on 31 samples)
Rank 18423%
Min Avg Max
29.5 Read 60.7 98.7
13.5 Write 57.8 101
13.6 Mixed 39.6 87.9
24.4 SusWrite 55 103
71.4% 53.3 MB/s
Min Avg Max
0.04 4K Read 0.46 0.8
0.11 4K Write 0.74 1.02
0.04 4K Mixed 0.51 0.8
44.4% 0.57 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
46GB free, PID 1052
Operating at USB 3.0 Speed
SusWrite @10s intervals: 105 106 107 104 99 99 MB/s
37.8% Below average
Read 83.1
Write 93.9
Mixed 53.6
SusWrite 103
115% 83.5 MB/s
4K Read 0.5
4K Write 1
4K Mixed 0.7
60% 0.73 MB/s
145GB free, PID 1052
Operating at USB 3.0 Speed
SusWrite @10s intervals: 94 93 93 82 86 92 MB/s
34.8% Below average
Read 85.2
Write 85
Mixed 55.7
SusWrite 89.8
107% 78.9 MB/s
4K Read 0.5
4K Write 0.9
4K Mixed 0.7
56% 0.7 MB/s
47GB free, PID 1052
Operating at USB 3.0 Speed
SusWrite @10s intervals: 86 81 78 80 67 72 MB/s
33.6% Below average
Read 93.1
Write 97.4
Mixed 54.2
SusWrite 77.4
108% 80.5 MB/s
4K Read 0.5
4K Write 1
4K Mixed 0.7
60% 0.73 MB/s
47GB free, PID 1052
Operating at USB 3.0 Speed
SusWrite @10s intervals: 82 79 81 82 77 75 MB/s
33.5% Below average
Read 91.8
Write 92.4
Mixed 59
SusWrite 79.4
108% 80.7 MB/s
4K Read 0.5
4K Write 0.9
4K Mixed 0.7
56% 0.7 MB/s
78GB free, PID 1052
Operating at USB 3.0 Speed
SusWrite @10s intervals: 93 93 92 91 94 92 MB/s
32.3% Below average
Read 66
Write 72.8
Mixed 45.5
SusWrite 92.4
96% 69.2 MB/s
4K Read 0.5
4K Write 0.8
4K Mixed 0.7
53% 0.67 MB/s
77GB free, PID 1052
Operating at USB 3.0 Speed
SusWrite @10s intervals: 82 81 81 81 82 82 MB/s
30.5% Below average
Read 70.6
Write 79.7
Mixed 51
SusWrite 81.3
97% 70.6 MB/s
4K Read 0.5
4K Write 0.8
4K Mixed 0.7
53% 0.67 MB/s
24GB free, PID 1052
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 37 38 39 39 39 MB/s
15.4% Very poor
Read 36.7
Write 37.1
Mixed 23
SusWrite 38.4
46% 33.8 MB/s
4K Read 0.8
4K Write 0.5
4K Mixed 0.6
40% 0.63 MB/s
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