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- DRAM is not overwhelmingly important for NVMe as it is for SATA unless you're hammering the drive with terabytes of writes at a time such as during video editing; even then, HMB (host memory buffer) serves its purpose well, especially with newer and more robust DRAMless controllers, by reserving a tiny amount of system memory for storing the address table. Even larger drives will use some of their free space as superfast SLC cache that can absorb more data before going where it's supposed to go.
- DRAMless-ness gets much of its negative press from SATA days when controllers only had a tiny amount of on-controller DRAM to work with and would choke under certain workloads.
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