The Samsung 840 Pro uses the same MDX three-core controller found in the 840 base model. The main difference between these two classes of SSDs is the NAND flash. The 840 non-Pro uses triple-level cell flash, the first consumer SSD to use TLC flash. The 840 Pro uses Samsung's new 22nm MLC flash. Samsung pairs the MLC flash with a DRAM buffer, also from Samsung's catalog. All of the main components used in the 840 Pro come from Samsung and they are one of just a few SSD makers who are in a position to make such a product a reality.
A few weeks ago we told you we're lining up several 128GB capacity size SSDs after spending most of the year focusing on the larger capacity sizes. Today, we have benchmarks from the three fastest 120/128GB drives on the market today - Samsung 840 Pro 128GB, OCZ Vector 128GB and SuperSSpeed S301 SLC 128GB.
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