The ROG RAMDisk is fun to play with. It does have a nice "Junction" feature that lets you define or reserve RAM space to be remapped as temporary hard disk space.
There's two kinds of ramdisks. An imaged ramdisk is mirrored on your hard drive, and the image is updated whenever you do a proper shutdown/restart. Note that power loss or crashing can cause that image to not update and possibly be corrupted. I believe most ramdisk software allows you to create an image on the hard drive. Softperfect definitely does. If there's anything you can do with this "Junction" feature that you can't do by setting up an imaged ramdisk and installing your software to it, I'm not sure what it is. I can believe the Junction feature makes it easier to set up when the software has already been installed.
The other kind of ramdisk, the kind I use, is called a volatile ramdisk. This kind of ramdisk is *not* imaged to the hard drive, and is wiped completely upon restart/reboot. It is useful for creating self-cleaning browser caches that minimize unnecessary writes to expensive SSD's. This is the only kind of ramdisk that I use. Softperfect (Arne's recommendation, which I agree with) makes it very easy to set this up (though be sure, if you set one up, to check "Mount as Removable" when you create it, otherwise you will get Volume Shadow Service Copy errors during backups).
I was never able to set up a volatile ramdisk with ASUS Ramdisk, I could *only* set up imaged ramdisks, which I didn't have a use for. If that ever changes or has changed since I played with it, I might give it another shot, but to me not being able to use it to create volatile ramdisks is a dealbreaker.
Also, Softperfect will warn you that CCleaner is incompatible with using an imaged ramdisk if you have it installed (it is perfectly fine to use with volatile ramdisks). I'd worry (though I am not sure) that all other imaged ramdisks by any software company may also be incompatible with CCleaner and they just don't tell you.
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