TEST
YOUR USB

Samsung (ExtHD)

SSD 850 EVO 250G 250GB

▲ 500 ▼

Release date ≈ Q3 2015.

Average Bench: 162% (1st of 639)

Based on 11 user benchmarks.  Device: VID 11b0 PID 6388 Model: Samsung SSD 850 EVO 250G
Poor: 113%Average: 162% Great: 201%

Outstanding average bench

The Samsung SSD 850 EVO 250G 250GB averaged 62.0% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung SSD 850 EVO 250G 250GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 29MB/s
Avg. 4K Random Write Speed 21.4MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Samsung SSD 850 EVO 250G 250GB is 88.7%. This is a particularly wide range which indicates that the Samsung SSD 850 EVO 250G 250GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 259MB/s
Avg. 4K Random Read Speed 17.3MB/s
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Average Bench

(Based on 11 samples)
Rank 1162%
Min Avg Max
28.2 Read 259 401
20.8 Write 272 400
23.7 Mixed 258 356
145 SusWrite 265 325
363% 264 MB/s
Min Avg Max
5.6 4K Read 17.3 25.3
6.22 4K Write 21.4 26
3.46 4K Mixed 17.3 25
1,382% 18.7 MB/s
Min Avg Max
9.8 DQ Read 21.1 26.4
20.8 DQ Write 29 38.8
11.8 DQ Mixed 21.2 28.4
1,785% 23.7 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
228GB free, PID 6388
Operating at USB 3.0 Speed
SusWrite @10s intervals: 378 312 311 315 316 316 MB/s
213% Outstanding
Read 401
Write 400
Mixed 352
SusWrite 325
500% 370 MB/s
4K Read 25.3
4K Write 25.4
4K Mixed 25
1,808% 25.2 MB/s
DQ Read 26.4
DQ Write 31.7
DQ Mixed 28.4
2,142% 28.8 MB/s
102GB free, PID 6388
Operating at USB 3.0 Speed
SusWrite @10s intervals: 345 304 300 303 302 297 MB/s
201% Outstanding
Read 338
Write 340
Mixed 335
SusWrite 308
451% 330 MB/s
4K Read 23.8
4K Write 25.9
4K Mixed 24.6
1,806% 24.8 MB/s
DQ Read 26
DQ Write 26.1
DQ Mixed 25.8
1,862% 26 MB/s
90GB free, PID 6388
Operating at USB 3.0 Speed
SusWrite @10s intervals: 360 308 309 311 311 312 MB/s
201% Outstanding
Read 328
Write 313
Mixed 298
SusWrite 318
428% 314 MB/s
4K Read 21.5
4K Write 25.7
4K Mixed 23.6
1,757% 23.6 MB/s
DQ Read 22.1
DQ Write 26.2
DQ Mixed 23.8
1,783% 24 MB/s
97GB free, PID 6388
Operating at USB 3.0 Speed
SusWrite @10s intervals: 318 301 301 300 301 300 MB/s
201% Outstanding
Read 342
Write 353
Mixed 338
SusWrite 304
457% 334 MB/s
4K Read 22.9
4K Write 26
4K Mixed 24.2
1,792% 24.4 MB/s
DQ Read 24.2
DQ Write 35.7
DQ Mixed 27.4
2,236% 29.1 MB/s
175GB free, PID 6388
Operating at USB 3.0 Speed
SusWrite @10s intervals: 243 273 292 289 287 284 MB/s
164% Outstanding
Read 242
Write 225
Mixed 211
SusWrite 278
327% 239 MB/s
4K Read 9.9
4K Write 21.3
4K Mixed 22.2
1,516% 17.8 MB/s
DQ Read 22
DQ Write 37.9
DQ Mixed 26.5
2,272% 28.8 MB/s
64GB free (System drive), PID 6388
Operating at USB 3.0 Speed
SusWrite @10s intervals: 251 218 230 251 257 177 MB/s
138% Outstanding
Read 253
Write 270
Mixed 242
SusWrite 230
340% 249 MB/s
4K Read 11.4
4K Write 15.6
4K Mixed 12.7
1,005% 13.2 MB/s
DQ Read 14
DQ Write 21.1
DQ Mixed 17
1,348% 17.4 MB/s
64GB free (System drive), PID 6388
Operating at USB 3.0 Speed
SusWrite @10s intervals: 189 128 140 142 136 136 MB/s
113% Outstanding
Read 270
Write 261
Mixed 236
SusWrite 145
303% 228 MB/s
4K Read 7.9
4K Write 13
4K Mixed 8.8
771% 9.9 MB/s
DQ Read 9.8
DQ Write 20.8
DQ Mixed 13.6
1,206% 14.7 MB/s
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