"On the surface, the M5Pro Xtreme may seem more evolutionary than revolutionary, but Plextor's engineers have put a lot of effort into this upgraded version of the M5 Pro. Along with the recently released Xtreme firmware, the M5Pro Xtreme uses a newly engineered and redesigned PCB board that combines Marvell's 88SS9187 controller with Toshiba’s latest 19nm Toggle Mode MLC NAND flash. As you'd expect, this combination produced some impressive performance numbers. In our sequential read and write tests, the PX-256M5Pro Xtreme was able to read at speeds as high as 558 MB/s and write at speeds in excess of 436 MB/s. It also did reasonably well our random write tests, producing more than 63,000 IOPS at low queue depths. Increasing the queue depth did lead to better results. However, the M5Pro Xtreme still had a hard time keeping up with the latest offerings from OCZ and Samsung."



Link: CDRLabs