The JMicron JM602 controller, paired with insufficient cache, hobbled the first generation of consumer SSDs—once the cache filled, write speeds slowed to a crawl. Random-write latencies could get as bad as a fifth of a second (compared to .1ms for most modern SSDs), pulling average sustained writes down as low as 20MB/s in some cases. Manufacturers responded by adding more cache or by building future generations of drives on different controllers, such as the Barefoot Indilinx part. Since then, JMicron has been pretty quiet, but now Patriot’s Zephyr line has arrived, powered by JMicron’s new JMF612 SATA controller. Is this new effort enough to the put JMicron into our good graces?
Patriot on Wednesday launched a new line of SSDs built on top of the JMicron JMF612 controller. According to Patriot, you can expect "aggressive pricing and performance" from their Zephyr series.
"As solid-state drive technology advances, it is becoming more affordable, allowing SSD solutions to reach an increasing segment of end users. Patriot's objective is to offer the latest technology in our solutions which provide the best performance and price options", states Les Henry, Vice President of Engineering at Patriot. "Our Zephyr family of SSDs offer great performance, aggressive pricing and the inherent benefit of SSD technology over antiquated hard disk drives: quicker boot times and shorter application loading times. Including a Zephyr SSD in your desktop or notebook upgrade plans provides one of the best bang-for-the buck improvements you can make to your system."
That's all well and fine, but while Patriot was busy tooting its own horn, the company failed to mention exactly how much these new drives will cost. However they did release capacity and performance numbers, which breaks down as follows:
Zephyr 256GB: 240MB/s read, 180MB/s write
Zephyr 128GB, 240MB/s read, 145MB/s write
Zephyr 64GB, 240MB/s read, 85MB/s write
All three drives also ship with native support for the TRIM command in Windows 7. No word yet on when these will be available.