Re: [gentoo-user] 64bit vs 32bit

["Hemmann, Volker Armin" <volker.armin.hemmann@tu-clausthal.de>]

On Wednesday 21 June 2006 07:26, Mike Huber wrote:
> My understanding is that the major advantage of the 64-bit processors
> is for memory address space (>4Gigs of virtual memory space without
> PAE, technically 48 bits of address space, which is something like
> 128Terrabytes of addressable memory).
>
> There must be some advantage associated with being able to hold two
> long ints in one register (or some such relationship there).  Anyone
> know detailed explanations for situations where 64-bit is more/less
> beneficial and why?
>

large numbers?

but the 64bit amd extension is really, really helpfull, when you need 
registers. The additional registers are a huge advantage and can give you a 
nice boost. 

Can, not have too - it depends on the task and how the software was compiled.
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