4 ms·With 12 core Ryzen 9 they never slow it down for me too :)by shmerl 6y agoWith 12 core Ryzen 9 they never slow it down for me too :)dleslie 6y agoYou must not hit the disk much. Even with a fast m.2 I get crippling io waits.shmerl 6y agoWith recent Samsung NVMe it's pretty good. They are also releasing PCIe 4 Evo ones soon.