First of all, AppNee wants everyone to know three facts about RAM:

1. The capacity of single memory bank is getting bigger and bigger (8 GB of RAM is already ubiquitous)
2. The read/write speed of almost any RAM can reach more than 4 GB/s, but even the top-level, fastest SSD can only stay in the unit calculated in MB (may be 500 MB/s or less)
3. A large proportion of the memory capacity is in the idle state (wasted in vain)

Therefore, we can use some Ramdisk (AKA: RAM drive) software to drain the idle memory capacity, in order to improve the system performance crazily - play to their extreme.