"Saving power means getting rid of refresh and associated circuitry.....as well as virtual management files."
note: If one is to get rid of DRAM/SDRAM requiring refresh, they have no choice but to change the back ground environment devised on virtual management, to one that is not.
Managing a virtual background on SRAM would be very expensive. As the files grow through a virtual system, so must the RAM.
e.Digitals back ground environment grows...however, it does not require any increase in RAM resource.
doni