CHUWI LarkBox Pro Mini PC with 6GB RAM 128GB ROM Intel Celeron J4125 Quad Core processors impressed me. The idea was to. Difference Between Ram And Rom Rom Read Only Memory Ram In a nutshell data stored on RAM is volatile while data stored on ROM is permanent. . RAM is a computers short-term memory. Quick background main purpose was to find a solution for watching Xfinity Comcast TV on a normal TV outside the home. ROKU is the only streaming device that has the Xfinity app which only works inside the home network. Aside from the computer. The main difference between RAM and ROM is that RAM stores information only when the computer is turned on while ROM saves information permanently even when a user turns off or restarts the computer.