Here are my results running CrystalDiskMark.
The results on the left are:
2 1TB Western Digital Black Caviar drives configured RAID0.
The results on the right are:
1 Corsair Series GT 120 gig SSD.
By
billparadise at 2012-04-04
Looking at the results we can see a couple of things.
1: When it comes to really large file sequential reads and writes, things like movies and such, cheaper conventional hard drives configured in a RAID perform quite nicely compared to a SSD.
2: Since any Trainz route is composed of a great many number of small files "assets", we really need to pay attention to the performance gain seen as we look at the transfer rate of smaller files. In this area the SSD shines. Especially when we look at multiple requests for files.
I imagine if I was running just a single non RAID hard drive the results on the left would be lower.
Perhaps you should run CrystalDiskMark and see what you are currently getting performance wise. And then you can gauge what you might gain.
From my experience I would have to say that it's CPU first, video card second, and hard drive third in order of importance to acheive performance in Trainz.