The core difference between self-developed controllers and generic controllers lies in technology ownership and optimization depth. Self-developed controllers are independently developed by SSD brands such as Samsung and Western Digital, and are only compatible with their own flash memory chips. The deep collaboration between hardware and software allows for full utilization of chip performance, strong long-term stability, and support for exclusive optimization features (such as Samsung TurboWrite and Western Digital OptiNAND). However, the technology is closed and only used in their own products, resulting in a higher overall price. Generic controllers are developed by professional manufacturers such as Phison, Silicon Motion, and InnoGrit, and are open for licensing to numerous third-party brands, offering a wide range of choices and outstanding cost-performance for mid-to-low-end models. However, generic controllers require compatibility with different brands of chips, and the level of firmware optimization varies among SSD manufacturers, leading to significant differences in performance and stability among controllers of the same model
When ordinary users make purchases, if they pursue flagship performance and long-term stability, and intend to use them for professional design, large-scale gaming, and other scenarios, they should give priority to self-developed main controller SSDs. If their budget is limited and they mainly use them for daily office work and data storage, they can choose a first-tier brand's public version main controller SSD with mature firmware optimization, which can fully meet their usage needs.