32bit Vs 64bit OS

Jerry Feldman gaf at blu.org
Fri Jun 18 19:53:07 UTC 2010

  On 06/18/2010 03:21 AM, Łukasz Jagiełło wrote:
> 2010/6/18 Sam Varshavchik<mrsam at courier-mta.com>:
>> Minor differences are that 64 bit applications are slightly faster, and 64
>> bit lets you use more RAM.
> Not always it's faster, everything depend of application one will be
> faster one will be slower.
Agreed. First, the 64-bit OS itself should be a bit faster than a 32-bit 
OS on the same platform. But, in my experience with 64-bit going back 16 
years there are some applications that will run faster if built for 
32-bit and some will run faster if built for 64-bit. There are some 
tradeoffs. The sizes of libraries and applications will be larger in 
64-bit. You will need both 64-bit and 32-bit libraries if you want to 
run 32-bit apps.

But, IMHO, there should be very few reasons not to run a 64-bit OS on a 
64-bit processor.

Jerry Feldman<gaf at blu.org>
Boston Linux and Unix
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