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SamsungMZ-V8V500B
CrucialCT256M550SSD1
$152
▲ 5232 ▼

Release date ≈ Q1 2021.

VS
▲ 527,484 ▼
 $152 

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

Effective Speed 
+147%
Real World Speed
Performance profile from 100,414 user samples
Benchmark your SSD here
92,081 User Benchmarks
Best Bench: 295% 149GB free (System drive)
Worst Bench: 144% 79GB free
Poor: 144% Great: 295%
SPEED RANK: 86th / 1080
8,333 User Benchmarks
Best Bench: 113% 106GB free
Worst Bench: 60% 231GB free
Poor: 60% Great: 113%
SPEED RANK: 328th / 1080
Effective Speed
Effective SSD Speed 		224 % Hugely faster effective speed.
+147% 		90.5 %
Average Score 
+191%
Read
Avg. Sequential Read Speed 		1,509 MB/s Hugely faster read speed.
+261% 		418 MB/s
Write
Avg. Sequential Write Speed 		1,710 MB/s Hugely faster write speed.
+311% 		416 MB/s
4K Read
Avg. 4K Random Read Speed 		56.9 MB/s Hugely faster random read.
+110% 		27.1 MB/s
4K Write
Avg. 4K Random Write Speed 		134 MB/s Much faster random write.
+58% 		85 MB/s
Mixed
Avg. Sequential Mixed IO Speed 		1,478 MB/s Hugely faster mixed IO speed.
+394% 		299 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed 		70.5 MB/s Hugely faster random mixed IO.
+86% 		37.9 MB/s
SusWrite
Avg. Sustained Write Speed 		672 MB/s Hugely faster sustained write speed.
+116% 		311 MB/s
Peak Score 
+219%
Read
Peak Sequential Read Speed 		1,709 MB/s Hugely faster peak read speed.
+267% 		466 MB/s
Write
Peak Sequential Write Speed 		2,114 MB/s Hugely faster peak write speed.
+350% 		470 MB/s
4K Read
Peak 4K Random Read Speed 		65.1 MB/s Hugely faster peak random read.
+104% 		31.9 MB/s
4K Write
Peak 4K Random Write Speed 		221 MB/s Hugely faster peak random write.
+87% 		118 MB/s
Mixed
Peak Sequential Mixed IO Speed 		1,743 MB/s Hugely faster peak mixed IO speed.
+423% 		333 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed 		95.4 MB/s Hugely faster peak random mixed IO.
+106% 		46.4 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average 		1,371 MB/s Hugely faster peak sustained write speed.
+199% 		459 MB/s
Value & Sentiment 
+594%
Market Share
Based on 77,536,083 SSDs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.54 % Insanely higher market share.
+1,700% 		0.03 %
Value
Value For Money 		62.6 % Hugely better value.
+622% 		8.68 %
User Rating
UBM User Rating 		52 % 52 %
Price
Price (score) 		$71 Much cheaper.
+53% 		$152
Nice To Haves 
+287%
Age
Newest 		44+ Months Much more recent.
+65% 		127 Months
DQ Read
Peak 4K-64Thread Read Speed 		1,596 MB/s Hugely faster peak deep queue read.
+312% 		387 MB/s
DQ Write
Peak 4K-64Thread Write Speed 		1,540 MB/s Hugely faster peak deep queue write.
+327% 		361 MB/s
AS-SSD Total
AS-SSD Total Score 		4,773 Pts Hugely stronger server IO.
+285% 		1,240 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed 		1,240 MB/s Hugely faster peak deep queue mixed IO.
+417% 		240 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed 		1,192 MB/s Hugely faster deep queue read.
+283% 		311 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed 		905 MB/s Hugely faster deep queue write.
+221% 		282 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed 		971 MB/s Hugely faster deep queue mixed IO.
+383% 		201 MB/s
Specifications 
Capacity
Capacity 		500GB 256GB
Conclusion 
Average Bench 224%
Average Bench 90.5%

Unreal boot drive and the speeds are well worth the price. [Jul '22 percy2020]

MORE DETAILS

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

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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]

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 Frequently Asked Questions

Storage Devices FAQ
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What’s the difference between SATA, PCIe and NVMe?
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Solid State Drives
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