Average Bench: 91% (191st of 959)

more Based on 4,232 user benchmarks.  Models: Crucial_CT256M550SSD1, Micron_M550_2.5", Crucial_ CT256M550SSD3, Crucial_CT256M55, Micron_M Micron_M550_2.5", Crucial_ CT256M550SSD4, Crucial_ Crucial_CT256M55, Crucial_ CT256M550SSD1

The 256GB Crucial M550 is a welcome improvement over the 240GB M500. The new Marvel 88SS9189 controller has addressed our primary concern with the M500 which was poor sequential write speed. With sequential read/write speeds of 510/478 MB/s the M550 has a healthy core performance profile. Comparing the M550 and M500 shows that the new M550 leads on nearly every single performance metric. Unfortunately the M550 is priced significantly higher than the M500 but prices will likely drop as retailers build up stocks of the new M550. A key comparable for the M550 is the similarly priced market leading Samsung Evo. Comparing the Evo and M550 shows that the Evo is around 11% slower in terms of effective speed[Mar '14 SSDrivePro]

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Excellent average bench

The Crucial M550 256GB averaged just 9.0% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Crucial M550 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 153MB/s
Avg. 4K Random Write Speed 87.5MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Crucial M550 256GB is 49.1%. This is a relatively wide range which indicates that the Crucial M550 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 295MB/s
Avg. Sequential Mixed IO Speed 352MB/s
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Average Bench

(Based on 4,232 samples)
Min Avg Max
326 Read 447 522
304 Write 430 480
240 Mixed 352 489
124 SusWrite 295 446
85.6% 381 MB/s
Min Avg Max
18.4 4K Read 26.7 31.9
43.7 4K Write 87.5 123
16.9 4K Mixed 34.1 46.7
130% 49.4 MB/s
Min Avg Max
24.4 DQ Read 266 387
75.8 DQ Write 262 351
16.3 DQ Mixed 153 239
146% 227 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
96GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 345 228 245 262 254 245 MB/s
Read 465
Write 454
Mixed 326
SusWrite 263
85% 377 MB/s
4K Read 33.3
4K Write 134
4K Mixed 48.7
184% 71.9 MB/s
DQ Read 383
DQ Write 340
DQ Mixed 237
212% 320 MB/s
31GB free
Firmware: MU01
SusWrite @10s intervals: 445 86 99 86 93 84 MB/s
Read 470
Write 476
Mixed 331
SusWrite 149
80% 357 MB/s
4K Read 32.2
4K Write 123
4K Mixed 47.8
175% 67.6 MB/s
DQ Read 389
DQ Write 344
DQ Mixed 237
213% 324 MB/s
132GB free (System drive)
Firmware: MU02
SusWrite @10s intervals: 385 191 276 275 274 273 MB/s
Read 379
Write 448
Mixed 302
SusWrite 279
79% 352 MB/s
4K Read 29.7
4K Write 109
4K Mixed 43.1
158% 60.5 MB/s
DQ Read 379
DQ Write 336
DQ Mixed 237
211% 318 MB/s
4,232 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 9,080,066 SSDs tested.

Typical M550 256GB Builds (Compare 2,578 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 90%
Aircraft carrier
Desktop
Desktop 73%
Battleship
Workstation
Workstation 56%
Gunboat

Motherboard: MSI Z87-GD65 GAMING (MS-7845) - $149

EDIT WITH CUSTOM PC BUILDER Value: 80% - Excellent Total price: $1,071

Popular M550 256GB compatible motherboards:

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.

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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.
  • - 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.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) October 2018 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]

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

Controller: Marvell 88SS9189. Flash Memory: Micron Synchronous 20nm MLC

Do more, faster longer...

Added 4 years ago.

Poor

22 months ago.

I have one M550 / 256GB, one M500 / 240GB and old M4 /128GB. M550 is very good, very fast SSD.


Poor

19 months ago.

My rating was for the M550 512Gb SSD because Crucial Website says (AFTER I ordered one from Amazon) that it is not compatible with an ASUS Sabertooth Z87 motherboard. I mean. Why in F**K would a very recent SSD not be compatible with a very recent high-end motherboard? What nutter markets SSD`s which are (otherwise) secretly not going to work on modern PC`s ???


Outstanding

4 years ago.


Poor

2 years ago.

Great drive. I have m550 512gb and is crazy fast


Your
opinion?
959 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 i7-8700K $370Nvidia GTX 1070 $350Samsung 850 Evo 250GB $100
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $110
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $147SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $145SanDisk Ultra Fit 32GB $12
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