Average Bench: 57.8% (810th of 1058)

Based on 483 user benchmarks.  Model: INTEL SSDSCMMW240A3L

Average average bench

The Intel 521 Series 240GB averaged 42.2% 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 Mixed IO Speed 136MB/s
Avg. Sequential Read Speed 406MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Intel 521 Series 240GB is 25.3%. This is a relatively narrow range which indicates that the Intel 521 Series 240GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 195MB/s
Avg. Sequential Write Speed 233MB/s
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Average Bench

(Based on 483 samples)
Min Avg Max
298 Read 406 499
175 Write 233 290
209 Mixed 275 369
142 SusWrite 195 262
61.8% 277 MB/s
Min Avg Max
10.3 4K Read 17.9 25.5
18.9 4K Write 35.4 52.9
6.65 4K Mixed 16.7 27.5
67.2% 23.3 MB/s
Min Avg Max
15.7 DQ Read 194 300
34.8 DQ Write 175 252
7.45 DQ Mixed 136 263
115% 168 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
0GB free (System drive)
Firmware: LB3i
SusWrite @10s intervals: 211 218 218 218 218 216 MB/s
Read 349
Write 254
Mixed 284
SusWrite 217
62% 276 MB/s
4K Read 22.7
4K Write 45.5
4K Mixed 27.9
94% 32 MB/s
DQ Read 297
DQ Write 248
DQ Mixed 254
195% 266 MB/s
172GB free (System drive)
Firmware: LE9i
SusWrite @10s intervals: 271 277 282 276 278 276 MB/s
Read 390
Write 280
Mixed 295
SusWrite 276
70% 310 MB/s
4K Read 18.1
4K Write 37
4K Mixed 22.7
76% 25.9 MB/s
DQ Read 259
DQ Write 247
DQ Mixed 271
198% 259 MB/s
188GB free (System drive)
Firmware: LB3i
SusWrite @10s intervals: 226 207 221 215 217 218 MB/s
Read 331
Write 256
Mixed 271
SusWrite 217
60% 269 MB/s
4K Read 22.1
4K Write 42.3
4K Mixed 26.2
90% 30.2 MB/s
DQ Read 296
DQ Write 252
DQ Mixed 257
197% 268 MB/s
0GB free (System drive)
Firmware: LB3i
SusWrite @10s intervals: 110 129 132 140 180 217 MB/s
Read 377
Write 261
Mixed 280
SusWrite 151
60% 267 MB/s
4K Read 22.4
4K Write 45.3
4K Mixed 27.5
93% 31.7 MB/s
DQ Read 298
DQ Write 244
DQ Mixed 249
193% 264 MB/s
146GB free (System drive)
Firmware: LE9i
SusWrite @10s intervals: 191 222 177 203 172 194 MB/s
Read 354
Write 260
Mixed 272
SusWrite 193
60% 270 MB/s
4K Read 21.2
4K Write 42.1
4K Mixed 27.5
90% 30.3 MB/s
DQ Read 268
DQ Write 212
DQ Mixed 247
183% 242 MB/s
88GB free (System drive)
Firmware: LE9i
SusWrite @10s intervals: 217 192 205 200 193 194 MB/s
Read 341
Write 248
Mixed 247
SusWrite 200
58% 259 MB/s
4K Read 19.4
4K Write 34.8
4K Mixed 24.7
80% 26.3 MB/s
DQ Read 272
DQ Write 220
DQ Mixed 233
178% 241 MB/s
161GB free (System drive)
Firmware: LE9i
SusWrite @10s intervals: 188 195 192 186 199 188 MB/s
Read 313
Write 220
Mixed 253
SusWrite 191
55% 244 MB/s
4K Read 12.3
4K Write 29.8
4K Mixed 14.8
53% 19 MB/s
DQ Read 286
DQ Write 230
DQ Mixed 249
189% 255 MB/s
483 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,091,139 SSDs tested.

Typical 521 Series 240GB Builds (Compare 30 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 6%
Tree trunk
Desktop
Desktop 51%
Yacht
Workstation
Workstation 6%
Tree trunk

System: Lenovo 3444CUU

EDIT WITH CUSTOM PC BUILDER

Popular 521 Series 240GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
Solid State Drive Rankings (Price vs Performance) September 2021 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Comments

1058 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $44
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $346Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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