On 30/06/2009, at 8:43 AM, Ronda Brown wrote:
On 30/06/2009, at 7:52 AM, Peter Hinchliffe wrote:
On 29/06/2009, at 2:46 PM, Ronda Brown wrote:
It's not the 32-bit vs 64-bit that is the problem, it is
developers writing software for Snow Leopard. Look at iWork '09,
the requirements are 10.5.6, so no Tiger.
Point of fact Ronni - specifications for iWork '09 are 10.5.6 OR
10.4.11 if you're still running Tiger. iWork '09 is running quite
happily (albeit a little slowly) under Tiger on G4 computers (going
back to the old "table lamp" iMacs) across the network of one of my
clients.
Of course, it runs much better on the Intel/Leopard machines, but
that's only to be expected :-)
My "bad" there Peter ... sorry ;-(
Am I correct in my assumption below?
As far as I understand, 32 bit code will still execute on 10.6.
It's just that you'll get better performance with 10.6, regardless
of whether or not the application has been written to take
advantage of multiple cores.
Yes, I think sums it up, from my understanding. The main advantage of
64-bit is that you get access to far more memory than 32-bit. Of
course, the limiting factor is the amount of RAM your computer is
physically capable of using. Mac OS X has been 64 bit compliant for
some time, but we are only just now seeing mainstream consumer
products capable of using more than 4Gb of RAM, the limit of 32-bit
addressing. The new Macbook Pros can all accept 8 Gb of RAM. The main
increase in performance here, in the short term at least, will be
seen in the reduced use of virtual RAM, where the system has to use
areas of the hard drive instead of built-in RAM under large loads.
I don't know how Windows 7 works, but I know that with Windows Vista
you have to chose between 32-bit Vista and 64-bit Vista, and software
does have to specifically written for 64-bit Vista to take advantage
of it. As I understand it, Leopard and its underlying foundations
contains not such constraints (especially with Cocoa-based software),
and Snow Leopard will take it to the next level.
--
Peter Hinchliffe Apwin Computer Services
FileMaker Pro Solutions Developer
Perth, Western Australia
Phone (618) 9332 6482 Fax (618) 9332 0913
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