top and gkrellm
 

Looking at the output from top, my RAM usage is 386220k av 334004k used 52216k free, Gkrellm repports my RAM to be 377MB - 255MB free. Why the difference? I assume that top would be a better more acurate depication of what my system has seein how I do have 384MB RAM and top is 2MB off ;)

EDIT: Research comes in handy...

The ram usage reported by top or other system utilities includes AGP memory which ranges from 32 to 256 or more megabytes of ram. But this ram isn't really used - it's just attached to the process (hint : if this is the case for you, XFree should also have a huge size).

Is that true? If so it would explain why X = 105M to top. (64MB AGP Size)