RAMDISK is an application that allows you turn part of your system RAM into a usable drive with miles better performance then and SSD with read and write speeds greater then 4 Gb per second bur come with a cost, when a ramdisk is installed the total usable memory in your is reduced by the size equal to that of the disk and the other main draw back is that when you shut down your computer all data on the drive is lost, AMD Ramdisk does have an option so that this doesn't happen but it will save all the data onto your HDD or SSD meaning longer shut down times. The other performance hit is the boot time as the drive will to be built up quickly from data held on the other drives meaning if you install your games to the Ramdisk you will need to wait a little longer to access them.