f20 - difference between i386 and x86_64 distros

[Robert Moskowitz]

As I have mentioned, my x86_64 install on my Lenovo is a bit of a hack.  
Hopefully things will be better for f21, but meanwhile...

I am continuing to have problems.  Most recently, Gnome keeps crashing 
even without suspend attempts.

Soooo, I DO have a drive with f20 i386 installed, and I am seriously 
thinking of falling back to it.  "All" I have to do, is book from it, 
sync my files (mail mostly) from the x86_64 drive, and apply updates.

But what do I loose running i386 on a 64 bit system?  That is the 
serious question here.