I run both. I haven’t had any problems with either. NVME definitely loads this sim faster but did nothing about performance for me. Ino the numbers tell a different story but in reality, there are too many other variables that effect performance than just what kind of drive its stored on. Pick what preference is good for you. Power, heat or pocketbook. This sim runs better than all the rest no matter what kind of drive I store it on. just my personal opinion, for what its worth…