Even though we already reviewed the Plextor M5 Pro, we're still going to score it again today. Quite a bit has changed since its release and our initial review. The new firmware has increased the performance in a number of areas and the price has dropped a bit as well.
The only down side is the availability. There are only a few of these drives left for sale because Plextor has already ramped up production of the new model with the latest 19nm Toshiba Toggle NAND. Those with an eagle eye already compared the new Xtreme to the original Pro since the data made it into the charts today. In many of the tests the old M5 Pro with the Xtreme firmware update performed just as well as the new M5 Xtreme. What we don't know is the price of the new Xtreme model.
With the M5 Pro 256GB selling today for $209.99 and the Xtreme price unknown, the last few Pro models may be a better value. We really can't say though because Newegg and Google came up empty on the Xtreme price.
Don't count the Xtreme off your list just yet, though. We didn't touch on it much in this review, but in a few days we'll discuss the new features in the Xtreme programming that increases the garbage collection aggressiveness.