Compare Solid State Drives

Compare Crucial M550 128GB vs M550 512GB

Crucial M550 128GB and Crucial M550 512GB are both solid state drives with the same Interface (SATA 6 Gb/s), Form Factor (2.5") and SSD Controller (Marvell 9189). The main differences are in Performance (+7%), Capacity and Max Sequential Write.

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Crucial M550 128GB

Crucial M550 512GB

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Pangoly Score (How do we rate?)

88

Pangoly Score (How do we rate?)

89

Brand

Crucial

Brand

Crucial

Model

CT128M550SSD1

Model

CT512M550SSD1

Release Date

📅 March 2014

Release Date

📅 March 2013

* First availability for purchase, it may not correspond to the actual market launch date.

User reviews

★★★★★

(152 reviews)

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User reviews

★★★★★

(152 reviews)

Add a product review

Performance (Charts)

276th / 1746

(-7%)

Performance (Charts)

250th / 1746

(0%)

Effective Value

227th / 336

Effective Value

284th / 336

Price history

View Details ►

Price history

View Details ►

Price/GB

$0.78

Price/GB

$0.39

GB/$1

1.29

GB/$1

2.56

Pros

Strong performance
Good upgrade over the M500
Marvell 88SS9189 controller

Pros

Strong performance
Good upgrade over the M500
Marvell 88SS9189 controller

Cons

The 128GB version has limited writing speed

Cons

Not as fast as some high-end drives

Series

M550

Series

M550

Capacity

128 GB

Capacity

512 GB

Interface

SATA 6 Gb/s

Interface

SATA 6 Gb/s

NVME

No

NVME

No

Form Factor

2.5"

Form Factor

2.5"

SSD Controller

Marvell 9189

SSD Controller

Marvell 9189

NAND Flash Type

MLC

NAND Flash Type

MLC

Max Sequential Read

Up to 550 MB/s

Max Sequential Read

Up to 550 MB/s

Max Sequential Write

Up to 350 MB/s

Max Sequential Write

Up to 500 MB/s

MTBF

1,500,000 hours

MTBF

1,500,000 hours

Options (2)

	256 GB $178.14
	512 GB $199.99

Comparison and key differences summary

Reasons to buy the Crucial M550 128GB:

50% cheaper, you can save $100.58
Moderately better effective value.
Newer Product, it was released around 12 months later

Reasons to buy the Crucial M550 512GB:

Better Pangoly Score. (How do we rate?)
Slightly better performance, around +7%
More Capacity (+384 GB available)

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