We are going to take a look at this controller in a new light, however, it is by no means new (other than its firmware) and has been on the market for just over a year now.
This is the one of the first Crystal DiskMark benchmarks we ever conducted, and it was of the original release of the Samsung 64GB MLC FlashSSD.įast forward a bit and today we have in front of us three prototype SSDs, all containing the JMF667H controller, and each with different NAND flash memory on board. Those were the early days of the SSD industry, only to be followed by the next step where third-party companies would buy complete SSD packages from Samsung and Intel, only to apply a branding sticker and call them their own. This issue was corrected by Samsung, and also by JMicron through the addition of a 16Kb cache buffer, JMicron’s newly released controller designated as the JMF602B. Similarly, very early Samsung and SanDisk controllers also suffered this same latency issue which left Intel as the light at the end of the tunnel in the SSD industry at that time. This controller was labeled the ‘602 stuttering’ controller and had the potential to corrupt a SSD industry that was still in its infancy. To the average consumer unfortunate enough to have purchased an SSD at that time, these issues manifested themselves in the form of stuttering and extended delays getting information written to the drive. It had severe latency issues, these being first identified by Anandtech, although too late to stop the flood of consumer SSD sales. There was a problem with the 602 controller though. Even JMicron couldn’t have guessed that things would take off as they did.
Companies such as AData, G-Skill, Kingston, OCZ, Patriot, PQI, Runcore, Solidata, Supertalent and Transcend, were all quick to grab this controller and it hit the streets faster than it ever should have. This controller was released to manufacturers in 2008 and was the JMF602 controller. When we go back a few years, JMicron was one of the first in the SSD business to get the ball rolling and provide an SSD controller for SSD manufacturer use.
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