roberthuff at rcn.com
Thu Oct 29 12:16:58 UTC 2009
Matthew Seaman writes:
> All Intel processors produced in the last few years have been
> 64bit capable, including anything labelled 'core2'. You need to
> install the amd64 architecture binaries to get the system running
> in 64bit mode though, even though it's an Intel chip.
> Likewise, all Intel and AMD processors support running in 32bit
> mode, and you need to install the i386 architecture binaries to
> achieve that, irrespective of who actually manufactured your
> processor chips.
> As to which variant you should install? For servers, I'd go
> 64bit pretty much automatically. For desktops, especially if you
> need 3D graphics performance you're somewhat limited by the
> support available for your graphics adapter. There are 64bit
> drivers for various ATI cards, but I can't tell off hand if the
> one you have is supported. If it is, or if you don't care about
> 3D graphics support, then go 64bit.
There are alsu a ((very) small) number of ports that do not
compile or do not run in 64-bit mode. Figure out if one of them is
mission-critical before installing; check for the "NOT_FOR_ARCH" and
"ONLY_FOR_ARCH" settings in the port's Makefile.
That said, the machine I'm typing on is about six weeks old and
running an AMD Phenom II x4. I installed amd64 with some
trepidation, fully prepared to re-install i386. However, it's now
up over 675 ports - including apache, mysql, firefox, and OpenOffice
- and everything works.
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