TEST
YOUR USB

ST500LT0 (ExtHD)

12-9WS142 500GB

▲ 500 ▼

Release date ≈ Q4 2015.

Average Bench: 35% (58th of 639)

Based on 14 user benchmarks.  Device: VID 05e3 PID 0735 Model: ST500LT0 12-9WS142
Poor: 29%Average: 35% Great: 42%

Poor average bench

The ST500LT0 12-9WS142 500GB averaged 64.9% 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. Sustained Write Speed 90.4MB/s
Avg. Sequential Write Speed 88MB/s

Very good consistency

The range of scores (95th - 5th percentile) for the ST500LT0 12-9WS142 500GB is just 13.2%. 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 0.49MB/s
Avg. 4K Random Mixed IO Speed 0.44MB/s
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Average Bench

(Based on 14 samples)
Rank 5835%
Min Avg Max
37.6 Read 90.7 111
39 Write 88 104
26.4 Mixed 60.9 80.1
39.4 SusWrite 90.4 110
111% 82.5 MB/s
Min Avg Max
0.36 4K Read 0.49 0.53
0.64 4K Write 0.8 1
0.14 4K Mixed 0.44 0.7
43.7% 0.58 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
446GB free, PID 0735
Operating at USB 3.0 Speed
SusWrite @10s intervals: 109 110 111 108 110 111 MB/s
42.7% Average
Read 111
Write 101
Mixed 57.7
SusWrite 110
126% 95 MB/s
4K Read 0.5
4K Write 0.8
4K Mixed 0.7
53% 0.67 MB/s
297GB free, PID 0735
Operating at USB 3.0 Speed
SusWrite @10s intervals: 101 106 106 106 105 108 MB/s
42% Average
Read 109
Write 104
Mixed 60.5
SusWrite 106
126% 94.7 MB/s
4K Read 0.5
4K Write 1
4K Mixed 0.7
60% 0.73 MB/s
297GB free, PID 0735
Operating at USB 3.0 Speed
SusWrite @10s intervals: 106 103 105 101 101 109 MB/s
39.7% Below average
Read 97
Write 98.5
Mixed 59
SusWrite 104
121% 89.7 MB/s
4K Read 0.5
4K Write 0.9
4K Mixed 0.7
56% 0.7 MB/s
291GB free, PID 0735
Operating at USB 3.0 Speed
SusWrite @10s intervals: 70 73 73 74 74 73 MB/s
32.7% Below average
Read 96.5
Write 96.3
Mixed 54.3
SusWrite 72.7
106% 79.9 MB/s
4K Read 0.5
4K Write 0.9
4K Mixed 0.7
56% 0.7 MB/s
117GB free, PID 0735
Operating at USB 2.1 Speed
SusWrite @10s intervals: 40 39 40 40 39 38 MB/s
16.3% Very poor
Read 37.6
Write 39
Mixed 26.4
SusWrite 39.4
48% 35.6 MB/s
4K Read 0.5
4K Write 0.7
4K Mixed 0.6
46% 0.6 MB/s
14 MORE »
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