Quote:
Originally Posted by Brad
That depends on how you define "capable".
In a nutshell: - 10.3 has support for more than 4 GB of physical memory addressable by the OS (but not my individual processes)
- 10.4 has support for 64-bit processing in non-GUI processes
- 10.5 has support for 64-bit processing in Cocoa GUI applications
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Two more:
10.2.7 (G5-only) had a 64-bit version of Accelerate.framework, i.e. for AltiVec (math and vector processing).
And 10.6 has a 64-bit kernel (alongside a 32-bit one), and therefore support for 64-bit kernel extensions.