Crucial M550 SSD (512GB) Review – Consistent Performance Never Looked So Good!


The Crucial M550 SSD features a Marvell controller (88SS9189-BLD2), and when we cross-reference this product number through The SSD Database, we can see that this is the first time that we have seen this specific controller.

Crucial M550 SSD 512GB Marvell Controller

Across from the Marvell controller, we can find the Micron DRAM memory cache module. Also, It has been listed that the Crucial M550 features Micron’s own custom firmware.

Crucial M550 SSD 512GB PCB Controller DRAM Memory

On either side of the PCB, you will find eight of Micron’s 20nm MLC NAND modules, for a total 16 NAND modules. Each modules is 32GB for a total of 512GB RAW NAND flash memory. Each NAND module features Micron’s FBGA code, which we can then take to Micron’s FBGA model number lookup to see what the part number of the memory is. When we search for our FBGA (NW386), are results return with the part number MT29F256G08CECABH6-10:A.

Crucial M550 SSD 512GB PCB Back


At Technology X, we test our SSD’s slightly different depending upon the drive’s marketed purpose, that of a consumer or an enterprise focused SSD.  For a consumer SSD, our goal is to test in a system that has been optimized with our SSD Optimization Guide, however CPU C State alteration may or may not have occurred depending on the motherboard and BIOS configurations. Benchmarks for our consumer tests are that of fresh drives, so that we can verify that the manufacturer’s specifications match the SSD. Additionally, we also try to include links to the benchmarks used in our report so that you as the reader can replicate our tests to confirm that your SSD is top-notch.

System Feb 2014


This Test Bench build was the result of some great relationships and purchase; our appreciation goes to the below mentioned manufacturers for their support in our project. All of the components we use for testing and evaluation can be easily purchased at a relatively affordable price. The links provided below can assist in pricing, as well as availability for those of you who may find interest in our equipment.

PC CHASSIS: InWin 901 Mini-ITX Chassis
CPU: Intel i7 2600 CPU
CPU COOLER: Corsair H80 CPU Cooler
POWER SUPPLY: Cooler Master M2 Silent Pro 850W
SYSTEM COOLING: Corsair Chassis Fan
MEMORY: Crucial Ballistix Tactical Tracer 1600 MHz


The software used for today’s analysis is typical of many of our reviews and consists of ATTO Disk Benchmark, Crystal Disk Info, Crystal DiskMark, AS SSD, and PCMark Vantage.  In consumer reports, we prefer to test with easily accessible software that the consumer can obtain, and in many cases, we even provide links. Our selection of software allows each to build on the last and to provide validation to results already obtained.

Crucial M550 SSD 512GB Featured

Our report today examines Crucial's latest SATA 3 SSD release, the M550 2.5" 512GB SSD. The M550 is directed towards the personal computing market and is advertised with increased performance, expanded battery life for mobile users, a more fluid set of form factors and the standard high capacities. The Crucial M550 2.5" SSD features the SATA III (6Gbps) interface as well as Native Write Acceleration that is a significant step up on the M500 family. Additionally, the M550 is also has lower power consumption than its predecessor, the M500, with a low draw of <3mW while the device is in…

Review Overview

SSD Components
SSD Features

Consistent Performance

The Crucial M550 2.5" SSD is truly a premium solid state drive that consistently provides excellent performance that will not leave you disappointed.

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  1. Why would you buy this over the Crucial MX100 Series? Is there any difference?

    • the M550 is their premium line whereas the MX100 series is the more budget-friendly line. It’s like the difference between the Samsung 840 Pro and 840 EVO.

      For most people there won’t be much of a difference, but the M550 should offer increased speed over the MX100.

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