Hi guys! I apologize if there is another thread like this but I can't seem to find it. Searching the net wasn't too successful either. Anyway, my question is how would I know if my version of Leopard is running on 64 bit? I'm still not very "familiar" with OS X. It was easy on windows to know as it appeared on system properties. Thanks for all the help!
wala po kasing 32 bit na leopard kaya siguradong 64 bit yan. iisang version lang ang leopard. windows lang naman ang naglalabas ng 32bit at 64 bit version, may ultimate, home at profesional edition pa hehehe
IMO Leopard can run on both 32 or 64 bit machines. Now to answer the TS question, i think if your machine is Core 2 Duo or above, then Leopard is running in 64bit.
ahhh......you need more than 4 gb memory to take advantage of 64-bit architecture and for optimum performance, apps needs to be rewritten in 64 bit. Snow Leopard promises that. With most portables (macbooks/laptops) with less than 4 gb in memory, a 64 bit OS will not make it run any faster or better. As of now, very few applications exist that can take advantage of 64 bit computing. Even on the hardware side, very few applications exist that can take full advantage of multi-core, multi-gpu, multi-threading technogies. The building blocks are there but software companies have plenty of catching up to do before we, the consumers, benefit from 64 bit (be it hardware or software), in any meaningful or practical way.
Not really. I just would like to know the inner workings of a machine I'm using. Plus, I'm planning to upgrade the memory to 4GB. I'm kinda hoping the OS X that came pre-installed with my 13" MBP is 64 bit.
Go to Activity Monitor: You will see applications if your running with it. Although I did not enable it.
System Profiler > Software You'll see it under 64-bit Kernels & Extensions. Yes obviously means you're running on 64-bit, no, well, obviously means you're not. To enable 64-bit, restart your Mac and hold the keys 6 and 4 simultaneously. To return to 32 bit, just hold 3 and 2. (On Snow Leopard, unsure if it works the same on Leopard)
There is a HUGE performance difference between SL's 32-bit kernel and its 64-bit kernel, at least in my experience. I've updated most of the apps I use so that they run on SL's 64-bit kernel with the exception of VMWare Fusion and Blackberry Desktop Manager which require the 32-bit kernel.
This is a common misconception - that running in 64-bit kernel mode will speed up all your apps. 64-bit Kernel mode is different from 64-bit Applications. Even if you run in 64-bit kernel mode but your app is running in 32-bit mode, you will not notice any speed boost. Running in 32-bit kernel mode, you can still run 64-bit apps though and you will feel the improvement in speed -- IF your Mac supports it.
