Lemme just be clear - the issues I had with 64bit was three versions ago, and just for desktop related stuff. On a server it's a no-brainer - 64bit unless you have to run some third party software that's giving you hassles. koffiejunkielistlurker@koffiejunkie.za.nety Hans
I tried my original 32 bit dvd in the new AMD whilst attempting to grab the x86-64 from opensuse (3 attempts at broken Md5's).
On a user basis, one would not know it was a 64 bit box. eg KDE looks and feels just the same. The pleasant surprize comes with apache, mysql and php The database driven website which serves lot's of hi res jpg's really does fly under the new system. The jpg's appear at once rather than gradually from the top of the screen.
I'm still not really sure why 64 bit is faster but I would certainly recommend it having compared both.
Every use of uint64_t in code will be emulated by gcc for 32-bit archs. Which seems, from the asm dump, costly. Jan Engelhardt --