When referring to memory you need to be more specific. Do you mean usable memory (RAM) or do you mean storage (Hard Drive). An Xbox comes with a set amount of Ram, not upgradable. The Hard Drive can be upgraded to a larger drive(very expensive). All games that are made for the Xbox will run on any Xbox( no compatibility problems.
6.7 Gb
how much memory does xbox live need/
6.7Gb
It depends. The memory can range from 4GB-250GB.
300
7 mb
It depends on which one you buy. The cheaper Xbox s comes with 4Gb of memory while the much more expensive one comes with 250Gb.
I'm not too sure about this but, I didn't see any slots that look like a Xbox memory card can fit on a Xbox 360 memory card, I didn't even think Xbox had a memory card to tell you the truth, but if there is try goggling to see if there is a memory card for Xbox to Xbox 360 adapter or somthing like, sorry I couldn't help as much as you wanted. -RapidCartoon
The Xbox Live Arcade says it is 113.21 MB
less than 15 Kb
It comes with a 256mb memory card built in, but it can also use a hardrive for extra storage.
8 GB