Average Bench: 91.3% (250th of 1005)

more Based on 4,644 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]

ADVERTISEMENT

Excellent average bench

The Crucial M550 256GB averaged just 8.6% 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 210MB/s
Avg. 4K Random Mixed IO Speed 38.2MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Crucial M550 256GB is 48.1%. This is a relatively wide range which indicates that the Crucial M550 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 298MB/s
Avg. Sustained Write Speed 300MB/s
ADVERTISEMENT

Average Bench

(Based on 4,644 samples)
Min Avg Max
322 Read 418 464
320 Write 417 470
236 Mixed 298 331
125 SusWrite 300 457
80.5% 358 MB/s
Min Avg Max
18.5 4K Read 27 32.2
44.8 4K Write 89.7 126
24.5 4K Mixed 38.2 47.2
137% 51.6 MB/s
Min Avg Max
164 DQ Read 323 387
113 DQ Write 303 360
88.7 DQ Mixed 210 240
186% 278 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
222GB free
Firmware: MU02
SusWrite @10s intervals: 433 439 437 447 447 448 MB/s
Read 441
Write 447
Mixed 314
SusWrite 442
93% 411 MB/s
4K Read 25
4K Write 90
4K Mixed 34
129% 49.7 MB/s
DQ Read 386
DQ Write 350
DQ Mixed 238
214% 324 MB/s
111GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 302 260 229 240 224 244 MB/s
Read 432
Write 447
Mixed 313
SusWrite 250
81% 361 MB/s
4K Read 27.8
4K Write 80.5
4K Mixed 36.3
131% 48.2 MB/s
DQ Read 375
DQ Write 332
DQ Mixed 237
210% 315 MB/s
115GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 201 198 134 119 129 124 MB/s
Read 336
Write 211
Mixed 221
SusWrite 151
51% 230 MB/s
4K Read 20.5
4K Write 37.8
4K Mixed 25.2
83% 27.8 MB/s
DQ Read 231
DQ Write 177
DQ Mixed 162
132% 190 MB/s
4,644 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 15,868,716 SSDs tested.

Typical M550 256GB Builds (Compare 29,556 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 67%
Battle cruiser
Desktop
Desktop 72%
Battleship
Workstation
Workstation 67%
Battle cruiser

Motherboard: Asus PRIME B350-PLUS - $120

EDIT WITH CUSTOM PC BUILDER Value: 101% - Outstanding Total price: $697

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.

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.
  • - 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) July 2019 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]

ADVERTISEMENT

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 5 years ago.

Poor

2 years 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 ???


Poor

2 years ago.

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


Poor

3 years ago.

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


Outstanding

5 years ago.


Your
opinion?
1005 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 $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $252Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $70G.SKILL Trident Z DDR4 3200 C14 4x16GB $724SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $76SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback