64 bit

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I was reading an article about Leopard benchmarking the other day and they compared Tiger, Leopard 32bit and Leopard 64bit.

This lead me to wonder - does Leopard automatically install the 64bit version if your hardware supports it or do you choose what you want?

Both versions must be on the install DVD right?

 

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No such thing as a 64-bit version of Leopard - you're thinking in a narrow tunnel vision Windows way. 64-bit apps are just an extension to universal binaries - so they'll just add 64-bit G5 and 64-bit x86 versions to the existing 32-bit PowerPC and 32-bit x86 versions. Maybe they should rename them Fat Universal Binaries?

I see, so the 64 bit code is just another branch in the binary file format. That's not good news for disk space then!! It's bad enough already with OSX.