Device drivers in ubuntu64 vs ubuntu32

[sinistertim101]

Is there a different amount of drivers available in the 64-bit version of Ubuntu compared to the 32-bit one?

I know with WIndows Vista this is the case but I did not know if drivers had to be rewritten in Linux for the 64 bit versions.

I tried the 64 bit version of ubuntu and noticed I had no wifi drivers for my atheros chipset and I was wondering if the 32 bit version would be better?

[macaholic]

As far as I know, thre are 64-bit versions of all open source drivers, but as far as poprietary drivers, there may only be 32-bit version, most of which will run fine on 64-bit. As far as workign better or worse, the 32-bit one might function with less glitches, but that's it.