Average Bench: 91.7% (75th of 859)

more Based on 2,729 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 8.2% 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 Random Write Speed 82.9MB/s
Avg. 4K Random Read Speed 25.9MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Crucial M550 256GB is 46.6%. This is a relatively wide range which indicates that the Crucial M550 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K-64Thread Read Speed 185MB/s
Avg. 4K-64Thread Mixed IO Speed 49.9MB/s
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Average Bench

(Based on 2,729 samples)
Min Avg Max
372 Read 499 525
354 Write 450 483
241 Mixed 450 493
104% 466 MB/s
Min Avg Max
18.2 4K Read 25.9 31.9
43.1 4K Write 82.9 121
14.2 4K Mixed 27.2 38.4
118% 45.3 MB/s
Min Avg Max
22.8 DQ Read 185 370
58.2 DQ Write 206 334
14.7 DQ Mixed 49.9 78.8
77.9% 147 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
173GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 481
Write 410
Mixed 441
99% 444 MB/s
4K Read 25.5
4K Write 65.3
4K Mixed 32.8
115% 41.2 MB/s
DQ Read 201
DQ Write 176
DQ Mixed 65.7
83% 148 MB/s
127GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 502
Write 436
Mixed 465
104% 468 MB/s
4K Read 25
4K Write 57
4K Mixed 30
106% 37.3 MB/s
DQ Read 132
DQ Write 121
DQ Mixed 59.2
63% 104 MB/s
153GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 520
Write 447
Mixed 481
108% 483 MB/s
4K Read 27.6
4K Write 83.1
4K Mixed 19.3
111% 43.3 MB/s
DQ Read 28.3
DQ Write 85.7
DQ Mixed 54.3
42% 56.1 MB/s
94GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
SYSTEM NCQ 4KALIGNED SSD TRIM S.M.A.R.T
Read 521
Write 461
Mixed 480
109% 487 MB/s
4K Read 25.9
4K Write 56
4K Mixed 25
101% 35.6 MB/s
DQ Read 26.2
DQ Write 64.7
DQ Mixed 16.2
21% 35.7 MB/s
2,729 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 3,867,941 SSDs tested.

Typical M550 256GB Builds (Compare 2,868 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 64%
Destroyer
Desktop
Desktop 80%
Battleship
Workstation
Workstation 59%
Gunboat

Motherboard: Asus Z97-K - $130

EDIT WITH CUSTOM PC BUILDER Value: 70% - Good Total price: $1,086

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) September 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

 Comments

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

Do more, faster longer...

Added 3 years ago.

Good

9 months ago.

Great performance!


Poor

2 years ago.

Excellent operformance


Outstanding

3 years ago.


Poor

9 months ago.

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


Poor

6 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 ???


Poor

20 months ago.

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


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859 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
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AMD Ryzen 7 1700 $270AMD RX 480 $350Samsung 850 Pro 256GB $120
Intel Core i5-7600K $210Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $140
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $155SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $56HyperX Fury DDR4 2133 C14 2x8GB $141SanDisk Extreme 16GB $20
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