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OCZ Vertex 4 256GB Review

OCZ Vertex 4 256GB

OCZ has typically reserved its Vertex label for the highest-performing SSDs in a given generation—using synchronous NAND, for example, rather than the asynchronous NAND found in its less expensive Agility series. The 256GB Vertex 4 carries on that tradition, with 16 128Gb IMFT 25nm synchronous NAND packages on a board with 512MB of DDR3 DRAM cache and OCZ’s new Indilinx Everest 2 controller.

The Everest 2 controller in the Vertex 4 is a modified Marvell controller with custom Indilinx firmware.

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SanDisk Extreme SSD 240GB Review

SanDisk Extreme SSD 240GB

SSD vendors that make one or more components of their drives tend to do better than those who just slap commodity parts on a board and call it a day. Sounds reasonable, right? SanDisk’s Extreme SSD is yet another drive based on the LSI SandForce SF-2281 controller, a 6Gb/s SATA SSD controller with speedy sequential reads and an emphasis on hyper-fast queued random writes.

However, because it is a NAND manufacturer, SanDisk has the means to use its own 24nm toggle-mode NAND—eight 256Gb packages in the 240GB version—instead of commodity NAND. Like other SF-2281-powered drives, the Extreme SSD uses the extra 16GB of NAND for overprovisioning and write caching.

SanDisk’s Extreme is a plain black metal box with a sticker on it and speed inside.