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CrucialCT256M550SSD1
$152
SamsungMZ-V9P2T0B(W|/AM)
▲ 527,484 ▼
 $152 

Controller: Marvell 88SS9189. Flash Memory: Micron Synchronous 20nm MLC. Release date: Q1 2014.

VS
▲ 66315 ▼

Release date: Q4 2022.

Effective Speed 
+397%
Real World Speed
Performance profile from 69,687 user samples
Benchmark your SSD here
8,333 User Benchmarks
Best Bench: 113% 106GB free
Worst Bench: 60% 231GB free
Poor: 60% Great: 113%
SPEED RANK: 328th / 1080
61,354 User Benchmarks
Great bench: 587% 2TB free
Poor bench: 286% 2TB free (System drive)
Poor: 286% Great: 587%
SPEED RANK: 11th / 1080
Effective Speed
Effective SSD Speed 		90.5 % 449 % Hugely faster effective speed.
+397%
Average Score 
+502%
Read
Avg. Sequential Read Speed 		418 MB/s 2469 MB/s Hugely faster read speed.
+491%
Write
Avg. Sequential Write Speed 		416 MB/s 3845 MB/s Hugely faster write speed.
+824%
4K Read
Avg. 4K Random Read Speed 		27.1 MB/s 74.8 MB/s Hugely faster random read.
+176%
4K Write
Avg. 4K Random Write Speed 		85 MB/s 192 MB/s Hugely faster random write.
+126%
Mixed
Avg. Sequential Mixed IO Speed 		299 MB/s 2911 MB/s Hugely faster mixed IO speed.
+874%
4K Mixed
Avg. 4K Random Mixed IO Speed 		37.9 MB/s 103 MB/s Hugely faster random mixed IO.
+172%
SusWrite
Avg. Sustained Write Speed 		311 MB/s 2955 MB/s Hugely faster sustained write speed.
+850%
Peak Score 
+550%
Read
Peak Sequential Read Speed 		466 MB/s 3186 MB/s Hugely faster peak read speed.
+584%
Write
Peak Sequential Write Speed 		470 MB/s 4847 MB/s Hugely faster peak write speed.
+931%
4K Read
Peak 4K Random Read Speed 		31.9 MB/s 96.9 MB/s Hugely faster peak random read.
+204%
4K Write
Peak 4K Random Write Speed 		118 MB/s 317 MB/s Hugely faster peak random write.
+169%
Mixed
Peak Sequential Mixed IO Speed 		333 MB/s 3573 MB/s Hugely faster peak mixed IO speed.
+973%
4K Mixed
Peak 4K Random Mixed IO Speed 		46.4 MB/s 146 MB/s Hugely faster peak random mixed IO.
+215%
SusWrite
Peak Sequential Sustained Write 60s Average 		459 MB/s 4018 MB/s Hugely faster peak sustained write speed.
+775%
Value & Sentiment 
+∞%
Market Share
Based on 77,464,396 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0 % 1.67 % Insanely higher market share.
+∞%
Value
Value For Money 		8.68 % 215 % Insanely better value.
+2,372%
User Rating
UBM User Rating 		52 % 66 % More popular.
+27%
Price
Price (score) 		$152 $140 Slightly cheaper.
+8%
Nice To Haves 
+433%
Age
Newest 		127 Months 24 Months Hugely more recent.
+81%
DQ Read
Peak 4K-64Thread Read Speed 		387 MB/s 2243 MB/s Hugely faster peak deep queue read.
+480%
DQ Write
Peak 4K-64Thread Write Speed 		361 MB/s 1782 MB/s Hugely faster peak deep queue write.
+394%
AS-SSD Total
AS-SSD Total Score 		1,240 Pts 6,703 Pts Hugely stronger server IO.
+440%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		240 MB/s 1991 MB/s Hugely faster peak deep queue mixed IO.
+730%
ADQ Read
Avg. 4K-64Thread Read Speed 		311 MB/s 1608 MB/s Hugely faster deep queue read.
+417%
ADQ Write
Avg. 4K-64Thread Write Speed 		282 MB/s 1195 MB/s Hugely faster deep queue write.
+324%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		201 MB/s 1398 MB/s Hugely faster deep queue mixed IO.
+596%
Specifications 
Capacity
Capacity 		256GB 2TB
Conclusion 
Average Bench 90.5%
Average Bench 449%

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]

MORE DETAILS

The Samsung 990 Pro has a strong consumer performance profile. It offers burst read speeds of 3 GB/s and burst write speeds of 5 GB/s. The 990 Pro also offers respectable out of cache performance. At current prices (1TB $120 USD, 2TB $165 USD and 4TB $320 USD) the Samsung 990 Pro offers worse value for money than the WD Black SN850X. Samsung’s superior SSD technology allowed them to dominate the consumer market since SSDs became mainstream in 2010. However, in today’s market, their technology no longer justifies a price premium. [Jun '24 SSDrivePro]

MORE DETAILS

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Solid State Drive Rankings (Price vs Performance) November 2024 SSD Rankings

Welcome to our 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

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 Frequently Asked Questions

Storage Devices FAQ
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
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Solid State Drives
What is the SSD value for money rating?
What is 4K 64 thread write speed?
Can CPU power saving states (C1,C2,C3) impact SSD speed?
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Brands make boatloads on flagships like the 4090 and 14900KS. We help users get similar real-world performance for less money.
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The Best
CPUGPUSSD
Intel Core i5-12600K $169Nvidia RTX 4060 $295WD Black SN850X M.2 2TB $135
Intel Core i5-12400F $111Nvidia RTX 4060-Ti $345WD Black SN850X M.2 1TB $80
Intel Core i5-13600K $225Nvidia RTX 4070 $500Crucial T700 M.2 4TB $350
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