Patriot Zephyr 128GB Review

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?

Continue reading this review after the jump.