4 ms·
A lot of newer cheap NMVe SSDs don't have DRAM, but instead they use the HMB (Host Memory Buffer) feature, which essentially allows it to use a small amount of
by nfriedly 4y ago
A lot of newer cheap NMVe SSDs don't have DRAM, but instead they use the HMB (Host Memory Buffer) feature, which essentially allows it to use a small amount of your system RAM (maybe 64mb).
None of this applies to SATA SSDs, which is probably why it was omitted from the article, but it's a good thing to keep in mind if you're shopping for one for yourself. (These days I would only consider a SATA SSD for a system that did not support NVMe. Otherwise low end NVMe is significantly better.)