Samsung 840 White Paper page 31

Integration Matters
Having full control over the NAND, controller and firmware has major implications both for performance and reliability.
Samsung has intimate knowledge of every nuance of these components and can tweak them along each step in
the development process to ensure that they work perfectly together. Generic SSD controllers have to worry about
supporting multiple NAND specifications (from varying manufacturers who each have different manufacturing
processes), while Samsung's proprietary SSD controller is engineered solely to work with its own NAND – which means
engineers can focus all of their efforts towards one common specification.
As the most-integrated SSD manufacturer in the industry, Samsung controls all of the most crucial design elements
of an SSD: NAND, Controller, DRAM, and Firmware. Working together, these components are responsible for a crucial
task – storing and protecting your precious data. When it comes to SSDs, no one knows more about building a high-
performance, reliable drive than Samsung.