TEST
YOUR USB

Samsung (ExtHD)

SSD 850 PRO 256G 256GB

▲ 500 ▼

Release date ≈ Q1 2016.

Average Bench: 210% (1st of 639)

Based on 19 user benchmarks.  Device: VID 174c PID 55aa Model: Samsung SSD 850 PRO 256G
Poor: 84%Average: 210% Great: 313%

Outstanding average bench

The Samsung SSD 850 PRO 256G 256GB averaged 110.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung SSD 850 PRO 256G 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 47.7MB/s
Avg. 4K Random Write Speed 34MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung SSD 850 PRO 256G 256GB is 229%. This is a particularly wide range which indicates that the Samsung SSD 850 PRO 256G 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 299MB/s
Avg. 4K Random Read Speed 21.1MB/s
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Average Bench

(Based on 19 samples)
Rank 1210%
Min Avg Max
31.6 Read 299 464
23.9 Write 264 454
25.6 Mixed 248 383
23.9 SusWrite 259 441
360% 267 MB/s
Min Avg Max
7.7 4K Read 21.1 34.9
6.9 4K Write 34 80.3
7.7 4K Mixed 22.5 40.9
1,998% 25.9 MB/s
Min Avg Max
11 DQ Read 24.5 34.2
16.9 DQ Write 47.7 87.7
7.91 DQ Mixed 26.9 43.1
2,630% 33 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
215GB free, PID 55aa
Operating at USB 3.1 Speed
SusWrite @10s intervals: 362 303 288 292 299 380 MB/s
313% Outstanding
Read 462
Write 454
Mixed 363
SusWrite 321
534% 400 MB/s
4K Read 21.5
4K Write 55.7
4K Mixed 35
3,165% 37.4 MB/s
DQ Read 31.5
DQ Write 73.7
DQ Mixed 39.8
3,977% 48.3 MB/s
234GB free, PID 55aa
Operating at USB 3.1 Speed
SusWrite @10s intervals: 314 316 318 316 321 319 MB/s
299% Outstanding
Read 317
Write 292
Mixed 270
SusWrite 317
406% 299 MB/s
4K Read 27.2
4K Write 57.8
4K Mixed 36.1
3,295% 40.4 MB/s
DQ Read 30
DQ Write 73.2
DQ Mixed 37
3,860% 46.7 MB/s
238GB free, PID 55aa
Operating at USB 3.1 Speed
SusWrite @10s intervals: 261 267 266 270 270 269 MB/s
272% Outstanding
Read 343
Write 316
Mixed 290
SusWrite 267
408% 304 MB/s
4K Read 27.1
4K Write 51.2
4K Mixed 33.8
2,992% 37.4 MB/s
DQ Read 31
DQ Write 70.2
DQ Mixed 40
3,863% 47.1 MB/s
234GB free, PID 55aa
Operating at USB 3.1 Speed
SusWrite @10s intervals: 300 309 310 316 313 314 MB/s
254% Outstanding
Read 292
Write 272
Mixed 255
SusWrite 310
385% 282 MB/s
4K Read 26.1
4K Write 44.9
4K Mixed 33.3
2,757% 34.8 MB/s
DQ Read 26.9
DQ Write 70
DQ Mixed 39.6
3,828% 45.5 MB/s
234GB free, PID 55aa
Operating at USB 3.1 Speed
SusWrite @10s intervals: 295 305 306 306 311 313 MB/s
254% Outstanding
Read 294
Write 270
Mixed 239
SusWrite 306
376% 277 MB/s
4K Read 27.4
4K Write 44.9
4K Mixed 33.6
2,772% 35.3 MB/s
DQ Read 24.9
DQ Write 65.7
DQ Mixed 37.4
3,599% 42.7 MB/s
9GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 98 92 89 83 84 90 MB/s
84.2% Excellent
Read 98
Write 83.5
Mixed 85
SusWrite 89.3
120% 88.9 MB/s
4K Read 12.4
4K Write 15.5
4K Mixed 12
981% 13.3 MB/s
DQ Read 19.3
DQ Write 33.7
DQ Mixed 23.6
2,021% 25.5 MB/s
19 MORE »
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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CPUGPUSSD
Intel Core i5-13600K $269Nvidia RTX 4060 $295Crucial MX500 250GB $40
Intel Core i5-12400F $133Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
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