OCZ has issued a new firmware upgrade for its Vertex 4 SSDs. The new v1.4RC update is to improve the performance of the drives, increasing the max reading speed from 535 MB/s to 550 MB/s, while the new writing speed depends on the model. The sequential speed of the 128 GB model increases from 200 MB/s to 420 MB/s, while the 256 GB goes from 380 MB/s to 465 MB/s. Lastly, the 512 GB model stays at 475 MB/s.
One of the reasons the firmware allows the drives to operate faster is OCZ's use of algorithms to predict the next file to be read. The order in which files are loaded is often the same, making it quite predictable.
Instead of the usual SandForce controllers, OCZ has opted to use an Indilinx Everest 2 controller in its Vertex 4 SSDs. Some rumours claim that this second generation of Everest controllers is actually based on the Marvell 88SS9174 controller, which has proven itself time and again in Crucial's M4 series and the Intel SSD 510 drives.
Apart from the new firmware, OCZ will also launch a 64 GB drive, which should hit shelves in the coming weeks. No specifications of this drive has been released yet.