Currently I only have one SSD (just 500gb), where I have the game, OS and everything else installed.
I don’t think so because the OS isn’t doing much I/O in the background.
Personal Comments
Well, I’m a believer in putting a critical app on the fastest physical drive I can, so my install is on the only NVME M.2 on the mobo (Windows is on a separate 3.5 SATA SSD). That’s for both the Steam Common library dedicated to the sim and the Packages folder. So far, with the tweaks to the sim I’ve worked out to date, it’s performing quite well, averaging around 40-45 fps at 1080. If there are slowdowns, it’s likely from streaming services.
If nothing else, this keeps the number of r/w activity to the best minimum on the partition holding Windows, which is important for SSD lifetime management.
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I’m not sure about other brands but If you’re running Samsung don’t bother saving on them.
I’m using 128gb from 2014 as my MSFS cache drive on it’s third PC build.
Assuming that the separate drive is as fast or faster than the OS drive in theory yes you could see some increased performance.
In practice I think it would be limited to loading times if there was a noticeable difference at all as once Windows is loaded there is not much disk activity.
Possibly if you where running out of memory it might help as virtual memory (swap file) would be on the OS disk. In this case you would be better served with more memory.
That being said I have two SSDs a 512GB PCIe 3.0 has the OS and a 2TB PCIe 4.0 has data on it. Including the MSFS Official, Community, & RollingCache folders.
MSFS does not even come close to pushing either drive to its limit. I only see the 2TB PCIe 4.0 dirve work hard when doign other non MSFS related tasks that are more storage bottle necked.
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Yeah, thats exactly what i expect… Not a FPS improve, but maybe yes in terms of loading times or general stability.