Due to the nature of shrinking NAND, 25nm NAND inherently has a lower write tolerance compared to 34nm NAND, just as 34nm did compared to NAND at the 50nm node. The second impact worth noting doesn’t actually affect performance, but rather durability. (This is also why, as a general rule of thumb, that larger capacity SSDs tend to offer higher levels of performance.) OCZ Vertex 3 (vs. This is where the Max IOPS appears to gain its additional performance from, and also explains why the 240GB drive receives a lower boost in IOPS versus the 120GB model, because the 240GB Vertex 3 had already doubled the number of NAND die over its smaller 120GB relative. Remember that NAND is still the limiting factor in SSD performance, so by having double the number of stacked NAND die means more read and write requests can be taking place concurrently. Firstly, it allowed OCZ to include a greater number of smaller 4GB NAND (the Vertex 3 uses 8GB 25nm NAND), which combined with the necessary tweaking to the firmware allowed OCZ to increase overall drive performance.
This has two notable impacts on the drive worth mentioning. But instead of 25nm Intel NAND chips, inside users will find 34nm Toshiba flash memory. Of course the SF-2281 SandForce controller is still present and unchanged.
OCZ’s Vertex 3 Max IOPS is an altogether different beast under the hood. The Vertex 3 Max IOPS promises a tangible boost to IOPS performance over the already blazingly fast Vertex 3, but unlike the Vertex Turbo there is no overclocking or simple firmware tweaking behind the Max IOPS. The Turbo took the same Indilinx Barefoot controller found in the Vertex and overclocked it slightly to boost drive performance, although otherwise the drives were physically identical to one another. The 120GB Max IOPS promises an additional 15,000 of 4KB random write IOPS over the Vertex 3, while the 240GB version gains an additional 5,000 IOPS for a whopping total of 65,000 4KB random write IOPS.Īvid followers of solid-state drives may remember the original Vertex series, specifically the Vertex Turbo.
Frankly, given the performance of the Vertex 3 it is hard to fathom that OCZ could so quickly fine-tune that powerhouse of a drive to find more untapped performance to release, but that is the claim. Hot on the heels of our Vertex 3 review, OCZ Technology is back with the promise of an even faster drive, the Vertex 3 Max IOPS.
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