For the longest time, the allure of NVMe drives has always been their speed and responsiveness. And sure enough, most PCIe Gen 4 and Gen 5 drives deliver comfortably on that promise. However, “speed” means different things depending on what part of the OS experience you’re actually measuring. There’s a difference between how quickly your PC gets you to the desktop and how quickly it can move a 40GB file from one place to another.