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Written by Olin Coles   
Thursday, 04 March 2010
Table of Contents: Page Index
Marvell 88SS9174-BJP2 SSD Processor
Crucial RealSSD-C300
Marvell 88SS9174 Performance

Crucial RealSSD-C300

In a short amount of time, the entire SSD market has created and recreated itself several times over. Counting the generations of SSD processors has become difficult for experienced experts, and keeping-up with controller architecture has come with its own set of challenges. Benchmark Reviews has already tested dozens of Solid State Drive products, and we've seen everything from dual-SATA controllers in RAID-0 to large cache buffer modules used inside of them. In this article Benchmark Reviews tests the Marvell 88SS9174-BJP2 SSD controller, which is used in the Crucial RealSSD-C300 Solid State Drive by Micron Technology.


In addition to notebook and desktop computer installations, the 256GB Crucial RealSSD-C300 MLC SSD could also be utilized for mission-critical backups or high-abuse data systems; but its real focus is on high-performance data transfer speeds. Although the Micron CTFDDAC256MAG-1G1 model does not offer an integrated USB Mini-B port, there is a USB-to-SATA (and SATA power) adapter for making this into a portable backup storage device. Honestly, this should be standard equipment for all SSD storage products, and I'm happy to see Crucial lead by example.


Crucial RealSSD Features:

The RealSSD C300 drive was designed by Micron Technology, using the company's award-winning 34-nanometer NAND technology and a high-speed ONFI 2.1 NAND interface. Product features include:

  • 128GB Capacity: CTFDDAC128MAG-1G1
  • 256GB Capacity: CTFDDAC256MAG-1G1
  • 2.5-inch form factor
  • SATA 6Gb/s system interface
  • 4.3W / 94mW average power (active/standby)
  • Up to 355 MB/s sustained sequential read speed
  • Up to 215 MB/s sustained sequential write speed
  • 1500 G/1ms shock and 2Hz to 500Hz at 3.1G vibration
  • 0°C to +70°C temperature range
  • 75g weight
Capacity C300: 128GB to 256GB Industry standard for notebook applications
Form Factor 2.5-inch Drop-in replacement for existing designs that use HDDs
System Interface C300: SATA 6Gb/s Next-generation SATA 6Gb/s provides ultra-high bandwith for unprecedented performance
Average Power (active/standby) C300: 3.9W / <100mW Improves battery life and heat dissipation
Sustained Sequential Read/Write Speeds C300: up to 355 MB/s read and 215 MB/s write Improves operating system boot and application load times
Shock and Vibration 1500 G/1ms shock
2Hz to 500Hz at 3.1G vibration
Absence of any moving parts enables reliable operation in the most demanding environments
Temperature Range 0°C to +70°C Ideal for rugged environments
Weight 2.5-inch: 75g Lighter than HDDs, making them better for portable applications

CTFDDAC256MAG Specifications:Crucial_Real-SSD_Logo.png

  • Micron MLC NAND Flash
  • RoHS-compliant package
  • SATA 6Gb/s interface
  • ATA modes supported
    - PIO mode 3, 4
    - Multiword DMA mode 0, 1, 2
    - Ultra DMA mode 0, 1, 2, 3, 4, 5, 6
  • Industry-standard, 512-byte sector size support
  • Hot-plug capable
  • Native Command Queuing support with 32 command slot support
  • ATA-8 command set compliant
  • ATA security feature command set and password login support
  • Secure erase (data page) command set: fast and secure erase (clear, sanitize)
  • Self-monitoring, analysis, and reporting technology (SMART) command set
  • Performance:
    - PCMark Vantage (HDD test suite score): 45,000 (SATA 6Gb/s), 35,000 (SATA 3Gb/s)
    - Sequential READ: up to 355 MB/s (SATA 6Gb/s), up to 265 MB/s (SATA 3Gb/s)
    - Sequential WRITE: up to 215 MB/s (140 MB/s for 128GB drive)
    - Random 4k READ: up to 60,000 IOPS (SATA 6Gb/s), up to 50,000 IOPS (SATA 3Gb/s)
    - Random 4k WRITE: up to 45,000 IOPS (30,000 IOPS for 128GB drive)
    - READ latency: 55μs (TYP SATA 6Gb/s), 70μs (TYP SATA 3Gb/s)
    - WRITE latency: 60μs (TYP SATA 6Gb/s), 95μs (TYP SATA 3Gb/s)
  • Reliability
    - MTBF: TBD
    - 3-year warranty
    - Static and dynamic wear leveling
    - Field-upgradable firmware
    - Uncorrectable bit error rate (UBER): <1 sector per 1015 bits read
    - Low power consumption
  • Endurance: Total bytes written (TBW) - 72TB
  • Mechanical
    - SATA connector: 5V ±5%
    - 2.5-inch drive: 100.45mm x 69.85mm x 9.5mm
    - Weight: 75g (MAX)
  • Capacity (unformatted): 128GB, 256GB
  • Operating temperature: Commercial (0°C to +70°C)



# Poor RANDOM WRITE speed, but good SEQUENTIAL READ speedGreg 2010-03-03 19:47
9.5 MBytes/sec write speed for random 4KB blocks.

Even previous generation SSDs like the ubiquitous Intel SSD or the OCZ Vertex series achieve something like 30 or 40 MBytes/sec for random 4KB blocks.

Combine that with a high price and as-of-yet sparse availability of 6 Gbit/s SATA ports on motherboards, I've decided to pass on this one.
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# RANDOM WRITEchris 2010-03-09 06:52
where'd you get that 9.5 MBytes/sec write speed for random 4KB blocks. From another review site, if you have correct alignment for the SSD, 4KB random writes goes to a whopping 141 MBytes/sec :)
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# Try reading...Olin Coles 2010-03-09 08:07
All you had to do was look at the image or read the text, and you'd see that HT-Tune produced this particular result.

Oh- and by the way, if your 'other site' used Iometer for that 4K random write, you might want to ask which one of the infinite settings they used to create the test. There isn't a '4K random write' test in Iometer, but there is in HD-Tune.

Heres another site that nearly matched our own results:
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# Tough but priceyJohn Darcy 2010-03-04 02:31
It is early in the consumer development of this interesting technology. Far too expensive for me to get just to boot up a little faster, however , I can see its applications that can easily justify the costly premiums with only a few of the virtues. I will be following the development with interest . It came on the market and took off so quickly. It has so many areas of development that is completely different than the current moving part storage yet a throwback to the solid state technology of last century, sounds ancient that way....good review though
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# RE: Marvell 88SS9174-BJP2 SSD Processorshedeep 2010-03-05 04:00
checking : 9.5 MBytes/sec write speed for random 4KB blocks.
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# RE: Marvell 88SS9174-BJP2 SSD Processorjames braselton 2010-03-07 16:10
hi there i will be geting one of these for my ps3 soo i can have the worlds fastest ps3 on planet earth
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