I have an 512GB SATA and a 512GB NVMe drive in my laptop. Truth be told, I am not usng a terrible lot on the NVMe -- 145GB currently and I can move steamapps and wsl from c:\ to d:\ to make that 100GB and that's just two. So I could live with a 118GB system drive, yeah. Is it much faster than your run-off-the-mill NVMe drive? What I am asking, which benchmark matters most for Windows 10 OS usage? if it's Random read https://www.anandtech.com/show/12512/the-intel-optane-ssd-800p-review/5 then yes it's much faster. Note my laptop has only two PCIe lanes in the NVMe socket.