TEST
YOUR USB

Samsung (ExtHD)

SSD 840 Series 250GB

▲ 500 ▼

Release date ≈ Q1 2020.

Average Bench: 47.9% (26th of 639)

Based on 3 user benchmarks.  Device: VID 1bcf PID 0c31 Model: Samsung SSD 840 Series
Poor: 37%Average: 47.9% Great: 55%

Below average average bench

The Samsung SSD 840 Series 250GB averaged 52.1% 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-64Thread Write Speed 13.4MB/s
Avg. 4K Random Write Speed 11.3MB/s

Unknown consistency

There are too few samples to reasonably determine how consistently this USB perfroms. This result should be interpreted with caution.

Weaknesses

Avg. Sequential Read Speed 32MB/s
Avg. Sustained Write Speed 29.2MB/s
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Average Bench

(Based on 3 samples)
Rank 2647.9%
Min Avg Max
24.6 Read 32 35.9
33.2 Write 35 36.3
28.5 Mixed 31.1 32.8
18.6 SusWrite 29.2 37.5
43.7% 31.8 MB/s
Min Avg Max
5.9 4K Read 9.13 11.8
8.1 4K Write 11.3 12.9
9 4K Mixed 9.83 10.5
753% 10.1 MB/s
Min Avg Max
9.6 DQ Read 9.8 10.1
13.1 DQ Write 13.4 13.6
10.1 DQ Mixed 10.2 10.3
838% 11.1 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
106GB free, PID 0c31
Operating at USB 2.0 Speed
SusWrite @10s intervals: 37 37 38 37 37 38 MB/s
55.3% Above average
Read 35.5
Write 35.5
Mixed 32.8
SusWrite 37.5
48% 35.3 MB/s
4K Read 9.7
4K Write 12.9
4K Mixed 10.5
832% 11 MB/s
DQ Read 10.1
DQ Write 13.6
DQ Mixed 10.2
847% 11.3 MB/s
4GB free, PID 0c31
Operating at USB 2.0 Speed
SusWrite @10s intervals: 32 32 31 32 31 30 MB/s
51.4% Above average
Read 24.6
Write 33.2
Mixed 28.5
SusWrite 31.4
42% 29.4 MB/s
4K Read 5.9
4K Write 12.9
4K Mixed 9
767% 9.27 MB/s
DQ Read 9.7
DQ Write 13.4
DQ Mixed 10.3
842% 11.1 MB/s
15GB free, PID 0c31
Operating at USB 2.0 Speed
SusWrite @10s intervals: 28 24 17 14 15 14 MB/s
36.9% Below average
Read 35.9
Write 36.3
Mixed 32
SusWrite 18.6
41% 30.7 MB/s
4K Read 11.8
4K Write 8.1
4K Mixed 10
659% 9.97 MB/s
DQ Read 9.6
DQ Write 13.1
DQ Mixed 10.1
825% 10.9 MB/s
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The Best.
CPUGPUSSD
Intel Core i5-12600K $170Nvidia RTX 4060 $293Crucial MX500 250GB $39
Intel Core i5-12400F $120Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-13600K $260Nvidia RTX 4070 $550Samsung 870 Evo 250GB $45
HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $28Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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