Originally Posted by drunkahol
The AMD64 won't let you down whichever way you jump.
I've used 32-bit and 64-bit installs on my AMD rig throughout it's lifespan and never found performance to be an issue. The only downside about 64-bit installs is that there are certain applications completely absent from the 64-bit world (Flash being the biggest for me since the CBeebies website won't work and my daughter loves that site).
I remember reading somewhere that you can work around this by installing a 32bit browser. this way whenever you need flash, run the 32 bit browser, otherwise you stay in 64 bit. I might be mixing stuff though, but I do remember something like this.
How is the 64 bit processor in compiling big programs like the kernel for instance? do you see significant time reduction?