Where does one find 10us reads? The NAND is usually with a Tread of 50 to 100 us so just the NAND operation itself is more than 10us.<p>Tprog is around 1ms and Terase can be upwards of 2ms.<p>All in all this means a large variability in read performance depending on what other actions are done on the SSD and how well the SSD manages the writes and erase operations in the background.<p>This doesn&#x27;t even change with the interface (SAS&#x2F;SATA&#x2F;PCIe), those add their own queues, link errors and thus variability.<p>Then you have the differences in over provisioning that allow high OP drives to mask out better the programming and erase processes.