playing games off HDD

[squallseifer]

I'm in the process of reading through tutorials on how to be able to play games off my HDD. I would like to know if i have enough free space on my e drive (original xbox hdd).
It says in boxplorer that i have around 5gb free space in e
Then Evox says i have around 4.8gb free in e

Which one is more accurate?
And just to verify, does 5.xxx.xxx.xxx free space mean 5gb+?
i used x for the digits because i couldnt remember what they are.