HSV7ltr

Hi im sifting through these forums slowly and getting some slightly better performance. Just need help understanding why these settings have so many numbers? what is it measured in? localVRAM=1055588352; nonlocalVRAM=1048576; <i changed this to what i thought would be my 1024mb graphics card memory but then realised there were so many numbers for the localVRAM/ (pagefile?). Im guesssing its not in kb's? any help would be much appreciated